Diseases & National Health Programme
Which of the following is not true about Japanese encephalitis?
|A||About 80% of the patients are children below 5 years of age.|
|B||In epidemics, cases scatter with no more than 1-2 per village.|
|C||Overt disease to unapparent cases ratio is 1:100.|
|D||Bite from infected mosquito always leads to the disease|
(Ref: Textbook of PSM by Park 22nd edition; Pg- 259.)
a. JE cases mostly (85 %) occur among children less than 15 years of age.
b. It was observed in northern India, the number of cases recorded per village (population 500 to 5000) were no more than 1 to 2.
c. The ratio of overt disease to inapparent infection varies from 1:300 to 1:1000.
d. Not all individuals bitten by infected mosquitoes develop disease.
e. Other important about JE:
f. Pig- amplifiers of the host
g. Man is incidental dead end host.
h. No man to man transmission yet recorded.
i. Most important vector in south India is – culex tritaeniorhynchus.
j. Encephalitis cases due to JE may show a scattered distribution.
k. JE vaccine is an integral part of National Immunization Schedule in India in 11 endemic districts in UP, Assam, West Bengal and Karnataka.
l. Live attenuated vaccine (SA-14-14-2) single dose followed by a booster after 1 year