Chikungunya Fever by jennyyingdi

VIEWS: 8 PAGES: 7

									  Chikungunya Fever
MMWR March 30, 2007 / 56 (12); 276-277




           The only good mosquito…
What the heck is Chikungunya?
                  Togaviridae
                   alphavirus
                  RNA virus able to
                   evolve rapidly and
                   expand vector
                  Endemic in Africa
                   and Asia,
                   especially India
                  Vectored by Aedes
                   species
                   (albopictus,
                   aegypti)
               Recent History
   2005-2007
    epidemic in India
   1.4 million infected
    in 2006
   56K infected 2007
   Cases continuing to
    be reported every
    month
                            OMG!
   Outbreak in Italy in
    2007
             Clinical disease
   Significant
    morbidity, minimal
    mortality
   Fever, rash,
    nausea, fatigue,
    arthralgia lasting
    days to weeks
   Arthritis may be
    long-term
    sequellae
Natural cycle
          Aedes mosquitoes
           • Feed in daytime
           • Breed in stagnant
             water
           • Small puddle
          Reservoir
           • Primates
           • Transient viremia
             3-7 days
So what?
        Vectors in US!
        Infected mosquitoes
         can be brought in
         with shipping
        Viremic international
         travelers
        Minimal awareness in
         US health care
         system
        No reporting
        Susceptible
         population!!
           Emerging disease
   Change in vector
    distribution due to
    global warming/
    changing weather
    patterns
   Endemicity to
    epidemic
   Vector control es muy
    importante!!!
   Military has a new
    vaccine!
   Watch this space…

								
To top