Sigera, S.Perera, J.Rasarathinam, J.Samaranayake, D.Ediriweera, D.2016-12-192016-12-192016BMC Infectious Diseases.2016;16(1):7291471-2334 (Electronic)http://repository.kln.ac.lk/handle/123456789/15509Indexed in Medlineen-USWhooping CoughWhooping Cough-epidemiologyBordetella pertussis-immunologyPertussis Vaccine--immunologySeroepidemiologic StudiesCross-Sectional StudiesAdolescentChildSeroprevalence of Bordetella pertussis specific Immunoglobulin G antibody levels among asymptomatic individuals aged 4 to 24 years: a descriptive cross sectional study from Sri LankaArticle