Arbovirus infection in a Murray Valley community. I. Prevalence of antibodies, December, 1974.
A survey of antibodies to Group A and Group B arboviruses (also designated as alphaviruses and flaviviruses respectively) was performed in residents of a Murray Valley town eight months after an outbreak of arbovirus illnesses in other parts of the region. The sampling pattern was based upon a random selection of households. The prevalence of Group A antibodies rose steadily with relation to age. The prevalence of Group B antibodies was much lower in all age groups, and did not show such a consistent rise with age. No Group B antibodies were found in younger residents. This suggests either an unexpectedly rapid decay of the particular type of antibody in this age group, or regional variations in the prevalence of arbovirus which are not currently understood. Some individuals appear to be unusually exposed to arbovirus infection.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000914:Antibodies, Viral; D001102:Arbovirus Infections / Q000453:epidemiology*; D001103:Arboviruses / Q000276:immunology*; D001315:Australia; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
D000914:Antibodies, Viral