Module I: Dengue

General considerations:

Vector-borne diseases represent a public health problem in our country.

In order to work on them, reducing their existence and their effects, are needed

capable and committed people for such purposes, working as a team, which

know to turn to face different problems that can communicate with

populations properly, they are informed.

In this way, they can carry out actions to control these diseases and

insects that transmit and involve more people to participate and collaborate with

improving their environment and their health.

This module is part of a collection of materials made for Agents Course

Community Health and Environment.

These materials are designed to accompany the learning of the participants in the

classroom and field practices classes. In its pages you will find

information, images, graphics and different proposals related activity. Each

module will develop different central themes in the formation of a community agent

relation to vector-borne diseases.

The contents of this material, along with other modules and will work with

teachers, will allow them to reflect on the problems and situations that put in

health risk, and thinking strategies to work on them.

Introduction:

This module proposes hear more about Dengue.

Are presented in detail how the insect is involved in the transmission of dengue, which

features does the virus that produces it, how the disease develops and how

how can you participate in prevention. To understand these points, it is very

important to bear in mind what worked in the previous module about

concept of health, the organization of health care system, the tools

Epidemiology provides the overview of vectors and the diseases they

transmitted, and care have to handle waste.

Module structure:

You will find below the targets set for this module. Then they develop

the contents grouped into units. At the end of the material presented activities

aimed at understanding and reflection.

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Objectives

Understand the complexity of the problem of Dengue in Argentina.

Recognize the characteristics and habits of the insect vector of dengue.

Understand the importance of health surveillance applied to Dengue.

Know overview of the disease to make appropriate recommendations to the

population.

To promote and participate in preventive actions highlighting their fundamental role in

the

community participation.

Identify the different strategies for controlling vector Aedes aegypti.

Understand their role in vector control strategies.

units:

Notions of Medical Entomology.

Characteristics of the insect vector of dengue disease and its impact on health.

Dengue disease. Basic concepts.

Annex I: Recommendations for collection and disposal of useless objects.

Annex II: Types of larvicides commonly used.

Annex III: Treatment with adulticide.

Guidance to the reader:

Throughout the document, you will find that the important concepts are highlighted

in italics, bold or boxes.

The images and graphics are illustrative and function as a complement to

content.

In the footnotes you will see clarification of some concepts and references, with

suggestions for expanding the ideas reviewing other points of this or other modules.

Throughout the text, there are activities to reflect in class while working with

material.

In the last pages, other learning activities are located. Some are

reading and understanding individual resolution. Others require participation and

group discussion. All are grouped according to the topics covered in different units.

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Unit 1: Notions of Entomology Médica1

What is an Insect?

Invertebrates are animals that, because of jointed legs, belong to the group of

called Artrópodos2 (Arthron = joint, Podos = feet, legs). They are coated with

rigid surface (chitin), the cuticle, why ever they are growing suffer

move or change phenomenon called cuticle.

One of the important characters of insects is to present 3 pairs of legs in the

chest. The vast majority are divided into male and female, and have biological cycles or

evolutionary complex, with production of eggs and larval forms.

Morfológicos3 basic aspects to identify an insect

The figure shows a typical insect, with her body

divided into three parts: an earlier one is the

Head, followed by another that is slightly larger, the

Thorax, Abdomen and later.

You may notice that there are two head

appendages, antennae, which are organs

senses. The antennas have shape and size

different depending on the insect species. The

head contains mouthparts whose

features depends on the type of food.

In the case of mosquitoes and other insect of

Hematologists (Hematology = blood, Fago = eat,

feeding blood), they have a

trunk or proboscis, sharp, protected within

A characteristic of sucking type picador. Hard Case

Chest arise wings, which in this case are two pairs because it is an Insect Diptera (Di -

Two, Pteron - Alas, that has two wings). The shape, size and appearance of the wings is

very

varied. three pairs of legs that characterize insects are also located as

Hexápodos (Hexa - six, Podos - legs, feet, has six legs).

Finally there is the abdomen, which is segmented and ends in the apparatus

player or external genitalia (male or female).

1 Within the Entomology there are different areas of study. Medical Entomology impact

studies insects

human health.

2 It may be seen in the Introductory Module Unit Vectors and Vector Diseases.

3 Referrals to its shape