control of communicable diseases
TRANSCRIPT
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Control of
Communicable
Diseases
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National Tuberculosis
Program –Directly
Observed Treatment,
Short-Course
(NTP-DOTS)
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Tuberculosis is a disease caused by
a bacterium called Mycobacterium
tuberculosis.
Mainly acquired by
• inhalation of infectious droplets
containing viable tubercle bacilli.
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• Infectious droplets:
–Coughing
–Sneezing
–talking
–singing
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In 2007, there are 9.27 million
incident cases of TB worldwide and
Asia accounts for 55% of the cases.
Through the National TB Program
(NTP), the Philippines achieved the
global targets of 70% case detection
for new smear positive TB cases and
89% of these became successfully
treated.
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The various initiatives undertaken
by the Program, in partnership with
critical stakeholders, enabled the
NTP to sustain these targets.
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Nonetheless, emerging
concerns like drug
resistance and co-
morbidities need to be
addressed to prevent rapid
transmission and future
generation of such threats.
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Coverage should also be
broadened to capture the
marginalized populations
and the vulnerable groups
namely, urban and rural
poor, captive populations
(inmates/prisoners), elderly
and indigenous groups.
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Vision:
TB-free Philippines
Goal:
To reduce by half TB
prevalence and mortality
compared to 1990 figures by
2015
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Objectives:
The NTP aims to:
• Reduce local variations in TB control
program performance
• Scale-up and sustain coverage of
DOTS implementation
• Ensure provision of quality TB
services
• Reduce out-of-pocket expenses
related to TB care
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Elements of DOTS
• Political commitment with
increased and sustained financing
–Political commitment is needed to
foster national and international
partnerships, which should be linked to
a long-term strategic action plan.
Adequate funding is necessary to
improve the motivation of healthcare
workers.
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• Case detection through quality-
assured-bacteriology
–Bacteriology remains to be
confirmatory diagnostic test for
tuberculosis. Properly equipped
laboratories and trained personnel
are necessary for quality-assured
sputum smear microscopy.
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• Standardized treatment with
supervision and patient support
–The primary means of controlling
TB is organizing and administering
a standardized treatment for all
ages and for all types of
tuberculosis. This includes the use
of standardized treatment, such as
short-course chemotherapy (SCC)
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and the fixed dose combination (FDC), to
facilitate adherence to treatment and to
reduce the risk for developing drug
resistance.
–Supervised treatment (directly observed
treatment by a health care provider)
ensures that patients take their drugs
regularly and completely. Particular
attention should be given to the poorest
and most vulnerable groups.
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• An effective drug supply and
management system
–An uninterrupted and sustained supply
of quality-assured anti-TB drugs is
fundamental to TB control. Anti-TB
drugs should be available free of charge
to all TB patients, especially the poor,
because treatment has benefits that
extend to society. The use of anti-TB
drugs by all providers should be strictly
monitored.
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The use of FDCs of proven
bioavailability and of
innovative packaging, such as
patient kits, can help improve
drug supply logistics and drug
administration, promote
adherence to treatment, and
prevent development of drug
resistance.
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• Monitoring and evaluation
system, ad impact measurement
–This requires the standardized
recording of individual patient data,
including information on treatment
outcomes, which are then used to
compile quarterly treatment
outcomes in cohorts of patient.
These data, when compiled and
analyzed, can be used:
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a)At the facility level to monitor
treatment outcomes;
b)At the district level to identify
local problems as they arise;
c)The provincial or national level to
ensure consistently high-quality
TB control
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d) Nationally and internationally to
evaluate the performance of each
country
Regular programmed
supervision should be carried out to
verify the quality of information
and to address performance
problems.
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Prevention and Control
• Submit all babies for BCG
immunization
• Avoid overcrowding
• Improve nutritional and health status
• Advise persons who have been
exposed to infected persons to
receive the tuberculin test and, if
necessary, chest x-ray and
prophylactic isoniazid
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STRATEGIES IN CONTROLLING TB1. LOCALIZED IMPLEMENTATION OF TB CONTROL
2. MONITOR HEALTH CARE SYSTEM PERFORMANCE
3. ENGAGE ALL HEALTH CARE PROVIDER PUBLIC & PRIVATE
4. PROMOTE & STRENGTHEN POSITIVE BEHAVIOR OF COMMUNITIES
5. ADDRESS MDR, TB, HIV & NEEDS VULNERABLE
6. REGULATE & MAKE QUALITY TB DIAGNOSTIC TEST & DRUGS
7. CERTIFY & ACCREDIT TB CARE PROVIDERS
8. SECURE ADEQUATE FUNDING & IMPROVE ALL ALLOCATION & EFFICIENCY OF FUND UTILIZATION
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National Leprosy
Control Program
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• Vision: Empowered primary
stakeholders in leprosy and eliminated
leprosy as a public health problem by
2020
• Mission: To ensure the provision of a
comprehensive, integrated quality leprosy
services at all levels of health care
• Goal: To maintain and sustain the
elimination status
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• Objectives:
The National Leprosy Control Program
aims to:
Ensure the availability of
adequate anti-leprosy drugs or multiple
drug therapy (MDT).
Prevent and reduce disabilities
from leprosy by 35% through
Rehabilitation and Prevention of
Impairments and Disabilities (RPIOD)
and SelfCare.
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http://www.doh.gov.ph/node/1071.html
Improve case detection and post-
elimination surveillance system using the
WHO protocol in selected LGUs.
• Beneficiaries:
The NLCP targets individuals,
families, and communities living in hyper
endemic areas and those with history of
previous cases.
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Schistosomiasis
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SchistosomiasisBilharziasis/Snail Fever
• A slowly, progressive disease caused by blood flukes of class Trematoda. It is a chronic wasting disease common among farmers and their families in certain parts of Philippines.
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Etiologic agent
• Schistosoma japonicum
–This agent infects the intestinal tract (Katayama disease)
–It is found to be the only type that is endemic in the Phil.
–This is also known as “oriental schistosomiasis”
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• Schistosoma mansoni
–Also affects intestinal tracts
–Common in some parts of Africa
• Schistosoma haematobium
–Affects the urinary tract
–Can be found in some parts of the Middle East
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Incubation period is at least 2 months.
SOURCES OF INFECTION:
• Feces of infected persons
• Dogs, pigs, carabaos, cows, monkeys, and wild rats have been found infected ad, therefore, also serve as host
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Mode of transmission
• Ingestion of contaminated water
• Transmitted through skin pores
• Transmitted through intermediary host, a tiny snail called Oncomelaniaquadrasi
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Clinical manifestations
• Pruritic rash, known as “swimmer’s itch”, develops at the site of penetration
• Low-grade fever, myalgia, and cough
• Abdominal discomfort due to hepatomegaly, splenomegaly and lymphadenopathy
• Bloody-mucoid stools, similar to those in dysentery, that comes on and off for weeks
• Becomes icteric and jaundice
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• Later, belly becomes big because of an inflamed liver, resulting from accumulation of eggs in the organ.
• After some years suffering from this chronic disease the patient becomes weak and pale and there is marked muscle wasting.
• When the parasites reach the brain, the victim experience severe headaches, dizziness and convulsions.
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Modalities of Treatment
• Praziquantel tablet for 6 months; 1 tab 2x a day for three months, then 1 tab a day for another three months.
• Fuadin injection given either IM or IV. The patient should consume 360mg for the entire treatment.
• If the patient continues to live in the endemic area, he frequentl gets reinfected and has to be treated.
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Prevention and Control
To prevent schistosomiasis, one must have thorough knowledge of how the disease spreads. The basic principle of its prevention and control is interrupting the life cycle of the worm and protecting people from infection.
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• Have a stool examination
• Reduce snail density by:
–Clearing vegetation, thus exposing the snails to sunshine
–Constructing a drainage system (canals) to dry the areas where the snails thrive; and
– Improve farming through proper irrigation and drainage, crop rotation and removal of weeds, thus disturbing the living conditions of the snail.
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• Diminish infection rate through:
–Proper waste disposal
–Control of stray animals
–Prohibition of people, especially children, from bathing in infested streams
–The construction of footbridges over snail-infested streams
–Provision of an adequate water supply for bathing and laundering and safe water for drinking
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Schistosomiasis Control Program
Goal: To reduce the disease prevalence by 50% with a vision of eliminating the disease eventually in all endemic areas
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Objectives:
The Schistosomiasis control Program has the following objectives:
1. Reduce the Prevalence Rate by 50% in endemic provinces; and
2. Increase the coverage of mass treatment of population in endemic provinces.
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Filariasis(Elephantiasis)
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Filariasis
• A parasitic disease caused by microscopic, threadlike African eye worm. The adult worm can live only in the human lymphatic system. The disease is an extremely debilitating and stigmatizing and affects men, women, and children. It affects the poor in both rural and urban areas. The disease is rarely fatal; however, it causes extensive disability, gross disfigurement, ad untold suffering in millions of men, women, and children.
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Causative organism
• Wuchereria bancrofti – a thread worm four to five centimeters long and affects the lymph nodes and lymph vessels of the legs. Arms, vulva, and breast.
• Brugia malayi – shows manifestations resembling that of the bancroftian, but swelling of the extremities is confined to the areas below the knees and below the elbow
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• Brugia timori – rarely affects the genitals
• Loa loa – filarial parasite transmitted by the deer fly.
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Mode of Transmission
• Transferred from person to person through mosquito bites.
• Persons having circulating microfilariae are outwardly healthy but transmit the infection to others through mosquito bites.
• Persons w/ chronic filarial swellings suffer severely from the disease but no longer transmit the infection.
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Symptoms• On-and-off chills
• Headache
• Fever that lasts between months and one year after the insect bite
• Swelling
• Redness
• Pain in the arms, legs or scrotum
• Areas of abscesses may appear as a result of dying worms or a secondary bacterial infection
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Diagnostic procedure
• Circulating filarial antigen (CFA) test –finger-prick blood droplet
Modalities of Treatment
• Ivermectin, albendzol, or diethylcarbamazine (DEC)
• Surgery may be performed
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Nursing management
• Health education and information dissemination as to be the mode of transmission must be carried out.
• Environmental sanitation ad the destruction of breeding places of mosquitoes must be emphasized
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• Psychological and emotional support to client and the family are necessary
• Personal hygiene must be encouraged
• The course of the disease must be explained
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Prevention and Control
• Mosquitoes that carry the microscopic worms usually bite between the hours of dusk and dawn. It is therefore advised that people living in an area with filariasis should:
–Sleep under mosquito net
–Use mosquito repellant in the hours between dusk and dawn
–Take a yearly dose of medicine that kills the worms circulating in the blood
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• Filariasis is a major parasitic infection, which continues to be a public health problem in the
Philippines.
• It was first discovered in the Philippines in 1907 by foreign workers.
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• Consolidated field reports showed a prevalence rate of 9.7% per 1000 population in 1998.
• It is the second leading cause of permanent and long-term disability. The disease affects mostly the poorest municipalities in the country about 71% of the case live in the 4th-6th class type of municipalities.
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• The World Health Assembly in 1997 declared “FilariasisElimination as a priority” and followed by WHO’s call for global elimination.
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• A sign of the DOH’s commitment to eliminate the disease, the program’s official shift from control to elimination strategies was evident in an Administrative Order #25-A,s 1998 disseminated to endemic regions.
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National FilariasisElimination Program
Goal: To eliminate Lymphatic Filariasis as a public health problem in the Philippines by year 2017
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Vision: Healthy and productive individuals and families for Filariasis-free Philippines
Mission: Elimination of Filariasis as a public health problem thru a comprehensive approach and universal access to quality health services
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General Objectives: To decrease Prevalence Rate of filariasis in endemic municipalities to <1/1000 population.
Specific Objectives:
The National Filariasis Elimination Program specifically aims to:
1. Reduce the Prevalence Rate to elimination level of <1%;
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2. Perform Mass treatment in all established endemic areas;
3. Develop a Filariasis disability prevention program in established endemic areas; and
4. Continue surveillance of established endemic areas 5 years after mass treatment.
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Program Strategies:
STRATEGY 1. Endemic Mapping
STRATEGY 2. Capability Building
STRATEGY 3. Mass Treatment (integrated with other existing parasitic programs)
STRATEGY 4. Support Control
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STRATEGY 5. Monitoring and Supervision
STRATEGY 6. Evaluation
STRATEGY 7. National Certification
STRATEGY 8. International Certification
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Malaria
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Malaria is a parasite-caused disease that is usually acquired through the bite of a female Anopheles mosquito.
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Etiologic agent
• Plasmodium falciparum
• Plasmodium vivax – non-life threatening, except for the very young and very old
• Plasmodium malariae
• Plasmodium ovale
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Incubation period
• 12 days for P. Falciparum
• 14 days for P. vivax and vale
• 30 days for P. malariae
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It can be transmitted in the following ways:
(1) blood transfusion from an infected individual;
(2) sharing of IV needles;
(3) transplacenta (transfer of malaria parasites from an infected mother to its unborn child).
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Clinical manifestations
• Paroxysms with shaking chills
• Rapidly rising fever with severe headache
• Profuse sweating
• Myalgia, with feelings of well-being in between
• Splenomegaly, hepatomegaly
• Orthostatic hypotension
• Paroxysms may last for 12 hours and may attack daily or every two days
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• In children:
– Fever may be continuous
–Convulsions and gastrointestinal symptoms are prominent
– Splenomegaly is present
• In cerebral malaria:
– Severe headache, vomiting and changes in sensorium
– Jacksonian or grand mal seizure may occur
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Diagnostic Procedure
• Malarial smear
• Rapid diagnostic test (RDT)
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Malaria Control
Program
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This parasite-caused disease is the 9th leading cause of morbidity in the country.
Goal: To significantly reduce malaria
burden so that it will no longer affect
the socio-economic development of
individuals and families in endemic
areas.
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Vision: Malaria-free Philippines
Mission: To empower health
workers, the population at risk and
all others concerned to eliminate
malaria in the country.
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Objectives:
Based on the 2011-2016 Malaria
Program Medium Term Plan, it
aims to:
1. Ensure universal access to
reliable diagnosis, highly effective,
and appropriate treatment and
preventive measures;
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2. Capacitate local government
units (LGUs) to own, manage, and
sustain the Malaria Program in
their respective localities;
3. Sustain financing of anti-malaria
efforts at all levels of operation;
and
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4. Ensure a functioning quality
assurance system for malaria
operations.
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Program Strategies:
The DOH, in coordination with its
key partners and the LGUs,
implements the following
interventions:
1.Early diagnosis and prompt
treatment
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• Diagnostic Centers were established and strengthened to achieve this strategy.
• The utilization of these diagnostic centers is promoted to sustain its functionality.
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2. Vector control
The use of insecticide-
treated mosquito nets,
complemented with indoor
residual spraying, prevents
malaria transmission.
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3. Enhancement of local
capacity
LGUs are capacitated to
manage and implement
community-based malaria
control through social
mobilization.
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Rabies(Hydrophobia/Lyssa)
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Rabies
• A specific, acute viral infection communicated to man by the saliva of an infected animal
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Etiologic agent
• Rhabdovirus
–Bullet-shaped
–Sensitive to sunlight, ultraviolet light, ether, formalin, mercury and nitric acid
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Incubation period
• One week to seven-and-a-half months in dogs
• Ten days to fifteen years in human
–Depends on the distance of bite to the brain, extensiveness of bite, species of the animal, richness of the nerve supply in the are of the bite, resistance of the host
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Modes of Transmission
• An infected animal carries the rabies virus in its saliva and transmits it to humans by biting.
• Virus spread when the saliva comes in contact with the person’s mucus membranes
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Clinical manifestations
• Prodromal/ invasion phase
– Fever, anorexia, malaise, sore throat, copious salivation, lacrimation, perspiration, irritability, hyperexcitability , apprehensiveness, restlessness, mental depression, melancholia and marked insomia
–Pain at the site of bite, headache and nausea
–Pt. becomes sensitive to light, sound and temperature
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Nursing manangement
• Isolate the patient
• Give emotional and spiritual support
• Provide optimum comfort and prevent injury, especially during hyperactive episodes
• Darken the room and provide a quiet environment
• Pt. should not be bathed and there should not be any running water in the room or within the hearing distance of the pt.
• Concurrent and terminal disinfection should be carried out
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National Rabies
Prevention
Control Program
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Rabies is considered to be a
neglected disease, which is
100% fatal though 100%
preventable.
It is not among the leading
causes of mortality and
morbidity in the country but it is
regarded as a significant public
health problem because (1) it is
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acutely fatal infection and (2) it is responsible for the death of 200-300 Filipinos annually.
Vision: To Declare Philippines
Rabies-Free by year 2020
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Goal: To eliminate human rabies by the year 2020Program Strategies:To attain its goal, the program employs the following strategies:
1. Provision of Post Exposure Prophylaxis (PEP) to all Animal Bite Bite Treatment Centers (ABTCs)
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2. Provision of Pre-Exposure Prophylaxis (PrEP) to high risk individuals and school children in high incidence zones
3. Health Education
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Public awareness will be
strengthened through the Information,
Education, and Communication (IEC)
campaign.
• Program shall be integrated into the
elementary curriculum and the
Responsible Pet Ownership (RPO)
shall be promoted.
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• In coordination with the
Department of Agriculture, the
DOH shall intensify the
promotion of dog vaccination,
dog population control, as well
as the control of stray animals.
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RA 9482 or
“The Rabies Act of 2007”
rabies control ordinances shall
be strictly implemented. In the
same manner, the public shall be
informed on the proper
management of animal bites
and/or rabies exposures.
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4. Advocacy
The rabies awareness
and advocacy campaign is a year-
round activity highlighted on two
occasions – March as the Rabies
Awareness Month and September
28 as the World Rabies Day.
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5. Training/Capability Building
Medical doctors and
Registered Nurses are to be
trained on the guidelines on
managing a victim.
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6. Establishment of ABTCs by
Inter-Local Health Zone
7. DOH-DA joint evaluation
and declaration of Rabies-free
islands
http://www.doh.gov.ph/content/national-rabies-prevention-and-control-program.html
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Dengue• An acute febrile disease caused by infection
with one of the serotypes of dengue virus, which is transmitted by mosquito genus Aedes.
• Dengue hemorrhagic fever is a severe, sometimes fatal manifestation of the dengue virus infection characterized by a bleeding diathesis and hypovolemic shock.
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Etiological agent
• Flaviviruses 1, 2, 3, 4, a family of Togaviridae, are small viruses that contain single-stranded RNA.
• Arboviruses group B
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Mode of Transmission
• Bite of an infected mosquito, principally the Aedes aegypti
–Aedes aegypti is a day-biting mosquito
–Breeds in areas of stagnant water
–Has limited, low flying movement
–It has fine white dots at the base of the wings and white bands on the legs
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• Aedes albopictus may contribute to the transmisson of the degree virus in rural areas
• Other contributory mosquitoes:
–Aedes polynensis
–Aedes scutellaris simplex
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Incubation period
• The incubation period is three to fourteen days; commonly seven to ten days
Sources of Infection
• Infected persons – the virus is present in the blood of patients during the acute phase of the disease and will become a reservoir of the virus, sucked by mosquitoes, which may then transmit the disease.
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• Standing water – any stagnant water in the household and its premises are usual breeding places of these mosquitoes.
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Clinical Manifestations• Dengue fever
–Malaise
–Anorexia
– Fever and chills accompanied by severe frontal headache, ocular pain, myalgia with severe backache, and arthralgia
– Fever is non-remitting and persists for 3-7 days
–Nausea and vomiting
–Rash is prominent on the extremities and the trunk
–Petechiae
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• Dengue Hemorrhagic Fever (DHF)
– This severe form of dengue virus infection is manifested by fever, hemorrhagic diathesis, hepatomegaly and hypovolemic shock.
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Phases of the Illness
• Initial febrile phase lasting from two to three days
– Fever (39-40°C) accompanied by headache
– Febrile convulsions may appear
–Palms and sole are usually flushed
–Positive tourniquet test
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–Anorexia, vomiting, myalgia
–Maculopapular or petechial rash may be present and usually starts in the distal portion of the extremities, the skin appears purple, with blanched areas of varying size.
–Generalized or abdominal pain
–Hemorrhagic manifestations like positive tourniquet test, purpura, epitaxis, and gum bleeding may be present
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• Circulatory phase
– There is a fall of temperature accompanied by profound circulatory changes, usually on the 3rd to 5th days
–Patient becomes restless, with cool, clammy skin
–Cyanosis is present
–Profound thrombocytopenia accompanies the onset of shock
–Bleeding diathesis may become more severe and lead to GIT hemorrhage
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– Shock may occur due to loss of plasma from intravascular spaces; hemoconcentrationwith markedly elevated hematocrit is present
–Pulse is rapid and weak; pulse pressure becomes narrow and blood pressure may drop ti an unobtainable level
–Utreted shock may result in com; metabolic acidosis and death may occur within two days
–With effective therapy, recovery may follow in two to three days
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Classification according to severity
• Grade I
– There is fever accompanied with non-specific constitutional symptoms and the only hemorrhagic manifestation is positive (+) in the tourniquet test.
• Grade II
– All signs of Grade I, plus spontaneous bleeding from the nose, gums, and GIT, are present
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• Grade III
– There is the presence of circulatory failure, as manifested by a weak pulse, narrow pulse pressure, hypotension, cold, clammy skin, and restlessness
• Grade IV
– There is profound shock, and undetectable blood pressure and pulse
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Treatment Modalities
• Analgesic drugs
• Intravenous infusion
• Blood transfusion (severe bleeding)
• Oxygen therapy (for all patients in shock)
• Sedatives
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Nursing Management• Patient should be kept in a mosquito-free
environment to avoid further transmission of infection
• Keep patient at rest during bleeding episodes
• Vital signs must be promptly monitored
• In cases of nose bleeding, keep the patient’s trunk elevated; apply ice bag to the bridge of nose and to the forehead
• Observe for signs of shock, such as slow pulse, cold, clammy skin, prostration, and fall of blood pressure
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• Restore blood volume by putting the patient in Trendelenberg position to provide greater blood volume to the head part
• Patient with dengue is not infectious; therefore, isolation is not required.
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Prevention and Control
• Health education
• Early detection and treatment of cases will not worsen the victim’s condition
• Treat mosquito nets with insecticides
• House spraying is advised– Changing water and scrubbing sides of flower vases once
a week,
– Destroying the breeding places of mosquitoes by cleaning the surroundings, and
– Keeping the water containers covered
• Avoid hanging too many clothes inside the house
• Case finding
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National Dengue
Prevention and
Control Program
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The National Dengue Prevention
and Control Program was first
initiated by the Department of
Health (DOH) in 1993.
Region VII and the National
Capital Region served as the
pilot sites.
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It was not until 1998 when the program was implemented nationwide.
The target populations of the program are the general population, the local government units, and the local health workers.
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Vision: Dengue Risk-Free
Philippines
Mission: To improve the quality of
health of Filipinos by adopting an
integrated dengue control approach in
the prevention and control of dengue
infection.
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Goal: Reduce morbidity and mortality
from dengue infection by preventing
the transmission of the virus from the
mosquito vector human.
Objectives: The objectives of the
program are categorized into three:
health status objectives; risk reduction
objectives; and services & protection
objectives.
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Health Status Objectives:
• To reduce incidence from 32
cases/100,000 population to 20
cases/100,000 population;
• To reduce case fatality rate by
<1%; and
• To detect and contain all
epidemics.
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Risk Reduction Objectives:
• Reduce the risk of human exposure to
aedes bite by House index of <5 and
Breteau index of 20;
• Increase % of HH practicing removal
of mosquito breeding places to 80%;
and
• Increase awareness on DF/DHF to
100%.
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National STI/HIV
Prevention
Program
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It may be acquired through:
• Sexual contact (orogenital, anogenital) between opposite sexes, as well as of the same sex.
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• Bacteria are transmitted through direct contact with contaminated vaginal secretions of the mother as the baby comes out of the birth canal.
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Objective:
• Reduce the transmission of
HIV and STI among the Most
At Risk Population and
General Population and
mitigate its impact at the
individual, family, and
community level.
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Program Activities:
With regard to the prevention and
fight against stigma and
discrimination, the following are the
strategies and interventions:
1. Availability of free voluntary HIV
Counseling and Testing Service;
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2. 100% Condom Use Program (CUP) especially for entertainment establishments;
3. Peer education and outreach;
4. Multi-sectoral coordination through Philippine National AIDS Council (PNAC);
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5. Empowerment of communities;
6. Community assemblies and for
a to reduce stigma;
7. Augmentation of resources of
social Hygiene Clinics; and
8. Procured male condoms
distributed as education materials
during outreach.
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http://www.doh.gov.ph/content/national-hivsti-prevention-program.html