Serological survey for antibodies to arboviruses in the human population of Portugal

Abstract

A survey for antibodies to arboviruses in human sera was carried out to study the prevalence of infection with these viruses in the human population. Sera were obtained from 1,649 persons living in the country. The HI test showed that 3·3% of the population studied had antibodies to arboviruses, especially to group B. Neutralization tests done with some sera confirmed this information.