title: Serosurvey of chikungunya antibody in Calcutta metropolis.
abstract: Since its first isolation in Calcutta, in 1963, there have been many reports about epidemis of chikungunya virus infection in different parts of India. Calcutta experienced a concurrent epidemic of dengue and chikungunya between 1963 and 1965. But after that there is no report about any chikungunya infection in Calcutta. During routine investigations it is found that chikungunya antibody is on the wane. The present survey for chikungunya antibody showed only 4.37% (n = 17) seropositivity out of 389 sera tested. The highest (12.5%) seropositivity was observed in the age group of 51-55 years and no chikungunya antibody was detected in young and young adults. The findings suggest that chikungunya virus is disappearing from the Calcutta population.
authors.affiliation: Department of Virology, School of Tropical Medicine, Calcutta, India.
authors.forename: D K
authors.initials: DK
authors.lastname: Neogi
authors.forename: N
authors.initials: N
authors.lastname: Bhattacharya
authors.forename: K K
authors.initials: KK
authors.lastname: Mukherjee
authors.forename: M S
authors.initials: MS
authors.lastname: Chakraborty
authors.forename: P
authors.initials: P
authors.lastname: Banerjee
authors.forename: K
authors.initials: K
authors.lastname: Mitra
authors.forename: M
authors.initials: M
authors.lastname: Lahiri
authors.forename: S K
authors.initials: SK
authors.lastname: Chakravarti
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D018354:Alphavirus Infections / Q000453:epidemiology* / Q000276:immunology; D000914:Antibodies, Viral / Q000097:blood*; D002646:Chikungunya virus / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007194:India / Q000453:epidemiology; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D011159:Population Surveillance; D015995:Prevalence; D016036:Seroepidemiologic Studies; D017678:Sex Distribution; D014504:Urban Health
chemical_list: D000914:Antibodies, Viral