aedes mosquito
TRANSCRIPT
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� ANTHRAPO PHAGIC ANTHRAPO PHAGIC ANTHRAPO PHAGIC ANTHRAPO PHAGIC
� s_Ív dqan hscsb¯pìs_Ív dqan hscsb¯pìs_Ív dqan hscsb¯pìs_Ív dqan hscsb¯pì
� ho«nëÅnse Ccq− Øeho«nëÅnse Ccq− Øeho«nëÅnse Ccq− Øeho«nëÅnse Ccq− Øeങ്ങങ്ങങ്ങങ്ങfnÂfnÂfnÂfnÂ
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�� ZOONO PHAGICZOONO PHAGICZOONO PHAGICZOONO PHAGIC
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CWtNcpì CWtNcpì CWtNcpì CWtNcpì CWtNcpì CWtNcpì CWtNcpì CWtNcpì
�� CW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIv�� CW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIvCW tNcenë tijw B¬sImXpIv
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�� CW tNcenë tijw ap«IfpsS hfÀCW tNcenë tijw ap«IfpsS hfÀCW tNcenë tijw ap«IfpsS hfÀCW tNcenë tijw ap«IfpsS hfÀCW tNcenë tijw ap«IfpsS hfÀCW tNcenë tijw ap«IfpsS hfÀCW tNcenë tijw ap«IfpsS hfÀCW tNcenë tijw ap«IfpsS hfÀച്ചച്ചച്ചച്ചച്ചച്ചച്ചച്ച¡v¡v¡v¡v¡v¡v¡v¡v
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�� Hmtcm »Uv aoepw Zln¡mHmtcm »Uv aoepw Zln¡mHmtcm »Uv aoepw Zln¡mHmtcm »Uv aoepw Zln¡mHmtcm »Uv aoepw Zln¡mHmtcm »Uv aoepw Zln¡mHmtcm »Uv aoepw Zln¡mHmtcm »Uv aoepw Zln¡m³ ³ ³ ³ ³ ³ ³ ³ 2 2 2 2 2 2 2 2 þ þ þ þ þ þ þ þ 7 7 7 7 7 7 7 7 Znhkw thWwZnhkw thWwZnhkw thWwZnhkw thWwZnhkw thWwZnhkw thWwZnhkw thWwZnhkw thWw
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�� Hê PohnX Ime¯n Hê PohnX Ime¯n Hê PohnX Ime¯n Hê PohnX Ime¯n Hê PohnX Ime¯n Hê PohnX Ime¯n Hê PohnX Ime¯n Hê PohnX Ime¯n 5 5 5 5 5 5 5 5 ¢¢¢¢¢¢¢¢ച്ച്ച്ച്ച്ച്ച്ച്ച്ച്ച്ച്ച്ച്ച്ച് hscbp−mImwhscbp−mImwhscbp−mImwhscbp−mImwhscbp−mImwhscbp−mImwhscbp−mImwhscbp−mImw
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�� PePePePePePePePe\\\\\\\\nc¸në sXm«papIfnembmWv ap«IÄ nc¸në sXm«papIfnembmWv ap«IÄ nc¸në sXm«papIfnembmWv ap«IÄ nc¸në sXm«papIfnembmWv ap«IÄ nc¸në sXm«papIfnembmWv ap«IÄ nc¸në sXm«papIfnembmWv ap«IÄ nc¸në sXm«papIfnembmWv ap«IÄ nc¸në sXm«papIfnembmWv ap«IÄ
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���� hc− AhØsb ap«IÄ hc− AhØsb ap«IÄ hc− AhØsb ap«IÄ hc− AhØsb ap«IÄ hc− AhØsb ap«IÄ hc− AhØsb ap«IÄ hc− AhØsb ap«IÄ hc− AhØsb ap«IÄ 6 6 6 6 6 6 6 6 amkw hsc amkw hsc amkw hsc amkw hsc amkw hsc amkw hsc amkw hsc amkw hsc
AXnPohnçwAXnPohnçwAXnPohnçwAXnPohnçwAXnPohnçwAXnPohnçwAXnPohnçwAXnPohnçw
�� shÅw e`nçt¼mÄ shÅw e`nçt¼mÄ shÅw e`nçt¼mÄ shÅw e`nçt¼mÄ shÅw e`nçt¼mÄ shÅw e`nçt¼mÄ shÅw e`nçt¼mÄ shÅw e`nçt¼mÄ 2 2 2 2 2 2 2 2 þ þ þ þ þ þ þ þ 7 7 7 7 7 7 7 7 Znhk¯nëÅn hncnªvZnhk¯nëÅn hncnªvZnhk¯nëÅn hncnªvZnhk¯nëÅn hncnªvZnhk¯nëÅn hncnªvZnhk¯nëÅn hncnªvZnhk¯nëÅn hncnªvZnhk¯nëÅn hncnªv
emÀÆIÄ D−mæìemÀÆIÄ D−mæìemÀÆIÄ D−mæìemÀÆIÄ D−mæìemÀÆIÄ D−mæìemÀÆIÄ D−mæìemÀÆIÄ D−mæìemÀÆIÄ D−mæì
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Distinguishing characters of Anopheles, Culex
and Aedes mosquito eggs
Air
Culex eggs (raft)
Air
bubles
Aedes egg
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Distinguishing characters of Anopheles, Culex
and Aedes mosquito eggs
Anopheles Aedes Culex
Eggs laid singly singly In cluster (raft)
Float & frill present absent absent
No.of eggs (29-147) 140 (eggs may be laid
in successive days
16 sittings
200
Not so resistant to drying but
can survive up to 3 weeks in
mud
Can withstand
desiccation up-to 6
months
Cannot
withstand
drying
Duration of egg stage 2-3
days
2 days 24-36 hours
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apIfnem¡n shůn XqapIfnem¡n shůn XqapIfnem¡n shůn XqapIfnem¡n shůn Xqങ്ങങ്ങങ്ങങ്ങnInSçì.nInSçì.nInSçì.nInSçì.
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• emÀÆhfÀemÀÆhfÀemÀÆhfÀemÀÆhfÀച്ചച്ചച്ചച്ച¡v ¡v ¡v ¡v 4 4 4 4 L«L«L«L«ങ്ങങ്ങങ്ങങ്ങfp−v (INSTARS)fp−v (INSTARS)fp−v (INSTARS)fp−v (INSTARS)
• 3 3 3 3 L«L«L«L«ങ്ങങ്ങങ്ങങ്ങÄ AXnthKw ]qÀ¯nbm¡n Ä AXnthKw ]qÀ¯nbm¡n Ä AXnthKw ]qÀ¯nbm¡n Ä AXnthKw ]qÀ¯nbm¡n \\\\memwmemwmemwmemw• 3 3 3 3 L«L«L«L«ങ്ങങ്ങങ്ങങ്ങÄ AXnthKw ]qÀ¯nbm¡n Ä AXnthKw ]qÀ¯nbm¡n Ä AXnthKw ]qÀ¯nbm¡n Ä AXnthKw ]qÀ¯nbm¡n \\\\memwmemwmemwmemw
L«¯nte¡v ISçì.L«¯nte¡v ISçì.L«¯nte¡v ISçì.L«¯nte¡v ISçì.
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Distinguishing characters of Anopheles , Culex and Aedes
mosquito larvae
Anopheles Culex Aedes
air tube
present
Ventral hair (2 or more)Ventral hair (1)
Resting posture: Distinguishing characters of Anopheline &
Culine larvae
Anopheline larva
• When undisturbed, larvae of Anophelines lie flat along the surface of
water
• In contrast, in a similar situation, culicine larvae hang ‘head down’ from
the surface of water keeping the tip of breathing tube (siphon) in
contact with the surface of water
Culicine larva
• Anopheles: Rests parellel,
• spiracles in 8th seg.,
• presence of palmate hair
• Culex: Hang downwards, siphon in the
8th seg. ‘C’ like move, not sensitive to light,
not gregarious, long siphon
• Aedes: Downwards, short barrel shaped
siphon, spiracle in the tip, ‘S’ move, light
sensitive, gregarious
• Mansonia: Attached to roots of pistia,
respirate through the root cells.
Visual recognition of Aedes & Culex larvae
Aedes
• Gregarious in habit
• Air tube (siphon) short, about
twice as long as wide
• Siphon with only one pair of
ventral hair
• Move in a characteristic
Culex
• Not gregarious in habit
• Siphon long & tapered, at least 3
times as long as wide
• With more than one pair of
ventral hair
• Whip-like or figure “C”
movement which propels them • Move in a characteristic
(“S”/“8”) fashion, involving all
parts of the body
• React quickly to changes in light
intensity, removal of the cover
from the container will disturb
them- dive to the bottom
movement which propels them
rapidly to the bottom of the
container
• Not sensitive to changes of light
intensity. A rather strong
disturbance required to cause
them go to the bottom- return
fairly soon to the surface
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F¶nh cq]s¸Spì. F¶nh cq]s¸Spì. F¶nh cq]s¸Spì. F¶nh cq]s¸Spì.
• Anopheles: Comma, short respiratory trumpet,
funnel shaped, last ab.seg. has paddle hair
• Culex: Comma, tubular breathing siphon,
paddle hair absent
• Aedes: Comma shaped, paddle hair absent
• Mansonia: Comma shaped, attached to the
pistia, if detaches it dies
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Medically important genera and species of Mosquito
Genus
Number of species
In World In India
Anopheles 364 51
Aedes 888 111
Culex 715 57Culex 715 57
Mansonia 23 4
Other genus 121 26
Total 16 genus and 249 species in India
34 genus and 2968 species in the
world
Male
Anopheline:Palpi enlarged at tip
(club shaped)
Culicine:Culicine:Palpi distinctly
longer & always papering at
tip
Female
Anopheline:Palpi = proboscisPalpi = proboscis
Culicine:Palpi < Proboscis
Proboscis of aedes: Slim, straight,
decorated
• Anopheles: Spotted, Clumping of dark 7
light coloured scales
• Culex: Non spotted with narrow scales on
veins, clear wings
• Aedes: Light scales with brown/black in
colour
• Mansonia: Broader scales asymmetrically
arranged, speckled wings
Rest
• Anopheles: creates an
angle in resting, Dark pale
color
• Culex: Parellel to surface
dull coloured often brown
• Aedes: Hunched back,
dusty appearance , grey
color
• Mansonia: Hunched
back, brown color
• Anopheles:Adult • Culex:Adult
• Aedes:Adult • Mansonia:Adult
Breeding habits
• Anopheles: Fresh
water, water tanks
• Culex: Water with
bio-waste contents
• Aedes: Artificial • Mansonia:• Aedes: Artificial
containers like
coconut shells, tyres,
tubes, broken pots,,,
• Mansonia: Ponds,
lakes etc., Pistia.
Blood meals
• Anopheles: Both
antropophilic and
zoophilic
• Culex:Preferably
anthropophilic,
• Aedes:
Anthropophilic and
zoonophilic
• Mansonia: Anthropophilic
DISTINCTION
AEDES ALBOPICTUS
• Not a house hunting
mosquito
• Vigourous biter
AEDES EGYPTI
• House hunting mosquito
• Can bite through socks and
shirts
• Natural enemy:
toxorynchitinae
• 1/100 world’s most
invasive species.
• Can see 2 white lines in the
misonotum
• Vicious (violent) biter
• Only 1 white line in the
misonotum and divides
when reaches scutellam.
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� Terrain features – Altitude, fauna & flora, type of soil, riverine belt etc.
�Meterological factors – Temperature, relative humidity, rainfall
� Agriculture – Agricultural practices, deforestation / aforestation etc.
� Irrigation – Irrigation practices, projects, dams, water reservation,
What are the Other information required on Entomological Surveillance?
� Irrigation – Irrigation practices, projects, dams, water reservation,
canals, lift pumps etc.
�Human lifestyle, socio-economic and cultural aspects etc.
� Industrialization, housing, living, economic, sanitary conditions,
water management, water storage practices, fairs and festivals,
migration due to employment, political compulsions, war, etc.
Annexure 5
No House No
Number
of
members
in the
house
No. of
Fever
cases
Containe
r with
larvae
present/
absent
No. of
container
observed
No.of
positive
container
No. of dry
containers
seen
No. of
containers
eliminated Remarkas
Date
Place of survey
Name of Institution
NATIONAL VECTOR BORNE DISEASE CONTROL PROGRAMME
AEDES SURVEY TOOL
Name of local body
Name & Signature of JHI / JPHN / Surveyer
HOUSES
VISITED
HOUSES WITH
LARVAE
HOUSE
INDEX
NO. WITH
WATER
WITH
LARVAE
CONTAINER
INDEX
1/3/2010 KOTTAPARAMBA MADRASSA 28 0 0 30 0 0 0
REPORT OF VECTOR STUDYCONDUCTED AT ANGADIPPURAM
IN CONNECTION WITH SUSPECTED DENGUE FEVER CASE
DATE PLACE OF STUDY
HOUSES CONTAINERBRETEAU
INDEXREMARKS
1/3/2010 KOTTAPARAMBA SCHOOL 38 0 0 15 0 0 0
1/3/2010 ANGADIPPURAM TOWN 24 2 8.3333333 10 2 20 8.333333 SHOPS
1/3/2010 KC THEATRE AREA 33 0 0 31 0 0 0
1/3/2010 KAYAKKUNDU ROAD 35 2 5.7142857 10 2 20 5.714286
GRAND TOTAL 158 4 2.5316456 96 4 4.16666667 2.531646
LARVAL INDEX OF AEDESLARVAL INDEX OF AEDES
•House Index
• Number of positive houses for
Aedes larveX100/Number of Aedes larveX100/Number of
houses examined
• Container index
• Number of positive containers
for aedes foundX100/No. for aedes foundX100/No.
containers examined
Breteau Index
• Number of positive containersX100 Number • Number of positive containersX100 Number
of houses examined
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