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8/17/2019 RATTAN PPT ON DENGUE.pptx
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Contents
1.What is dengue e!e"
#.S$%&t'%s ' dengue e!e"
(.)ha"a*te"isti*s ' the Aedes %'s+uit'
4. Lie *$*,e ' the Aedes %'s+uit'
-. '/ t' &"e!ent the s&"ead '
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D EN G U E :- DEN0UE S A 2EBRLE LLNESS )AUSED BY A
2LA33RUS TRANSMTTED BY MOSUTOES.
T S TE MOST RAPDLY SPREADN0 MOSUTO5
BORNE 3RAL LLNESS.
TE PRN)PAL 3E)TOR S TE MOSUTO AEDES
A0YPT W) BREEDS N STANDN0 WATER
)OLLE)TON O2 WATER N )ONTANERS WATER
BASED AR )OOLERS AND TYRE DUMPS.
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Dengue Virus
1. Causes dengue and dengue hemorrhagic fever
2. It is an arbovirus3. Transmitted by mosquitoes
4. Composed of singe!stranded "#$
%. &as 4 serotypes 'D(#!1) 2) 3) 4*
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SERO TYPES:-
TERE ARE 2OUR SEROTYPES O2 DEN0UE
3RUS ALL PRODU)N0 A SMLAR )LN)AL
SYNDROME. DEN0UE EMMORA0) 2E3ER AND
DEN0UE SO)K SYNDROME )AN O))UR N
ND3DUAL WO ARE MMUNE TO ONE
SEROTYPE AND ARE TEN N2E)TED BY
OTER.
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1.The virus is inoculatedinto humans with themosquito saliva.
2.The virus localizes andreplicates in varioustarget organs forexample local lymphnodes and the liver.
!.The virus is thenreleased from thesetissues and spreadsthrough the blood toinfect white blood cellsand other lymphatic
tissues.
".The virus is thenreleased from thesetissues and circulates inthe blood.
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#.The mosquito ingests blood containing the virus.
$.The virus replicates in the mosquito midgut theovaries nerve tissue and fat body. It then escapesinto the body cavity and later infects the salivaryglands.
%.The virus replicates in the salivary glands andwhen the mosquito bites another human the cyclecontinues.
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CLIN ICAL EATU RES:-
N)UBATON PEROD
#57 DAYS
PRODOME
# DAYS O2 MALASE AND EADA)E
A)UTE ONSET O2 2E3ER 8BREAK BONE 2E3ER9
BA)KA)E ARTRAL0AS EADA)E
LA)RMATON S)LERAL N:E)TON NAUSEA
3OMTTN0 PARYN0TS URT;s RELAT3E
BRADY)ARDA.
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• RAS! :-
MA)ULOPAPULAR RAS ON TRUNK MAYDESUAMATE ON RESOLUTON OR 03E RSE TO
PETE)AE ON E
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morrhagic 'anifestations of (engue he%'""hages=*hiae &u"&u"a e**h$%'sesgi!a, ?,eedinga, ?,eedingt"'intestina, ?,eeding=e%ate%esis %e,ena he%at'*he@ia
atu"ia
eased %enst"ua, '/
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D IAG N O SIS:-
DA0NOSS )AN BE )ON2RMED BY
SERO)ON3ERSON O2 gM OR 2OUR2OLD N)REASE
N g0 ANTBODES TTERS.
gMg0 RATOS MAY BE USED TO DSTN0US
PRMARY 2ROM SE)ONDARY N2E)TON.
SOLATON O2 DEN0UE 3RUS 2ROM BLOOD ORDETE)TON O2 RNA BY P)R.
ELSA KTS DETE)T NS1 3RAL ANT0EN ALTOU0
LESS SENST3E TAN P)R.
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M AN AG EM EN T:-
TREATMENT S SUPPORT3E EMPASSN0 2LUD
REPLA)EMENT AND APPROPRATE MANA0EMENT
O2 SO)K AND OR0AN DYS2UN)TON.
PRE3ENTON=5
BREEDN0 PLA)ES O2 AEDES MOSUTOES
SOULD BE ABOLSED AND ADULTS DESTROYED
BY NSE)T)DES.TERE S NO 3A))NE.
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Pu"#ose of Co$t"ol•)educe female vector density to a
level below which epidemic vectortransmission will not occur •*ased on the assumption that
eliminating or reducing the number oflarval habitats in the domesticenvironment will control the vector •The minimum vector density toprevent epidemic transmission
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T&+,- /0
Reference:
1. http://www.who.int/ctd/docs/dengue.pdf
2. http://www.cdc.gov/
3. http://www.cdc.gov/ncidod/index.htm
4. www.dengue.gov.sg
5. Davidson Text oo! of "edicine
http://www.cdc.gov/ncidod/index.htmhttp://www.cdc.gov/ncidod/index.htmhttp://www.cdc.gov/ncidod/index.htmRecommended