[Serological study carried out in Cuban localities where confirmed western Nile virus infection is present].

INTRODUCTION

first infected cases caused by West Nile virus were reported in Cuba in 2004.

OBJECTIVE

to monitor and learn about the prevalence of the West Nile virus in those areas with confirmed cases.

METHODS

the study was conducted in Jatibonico municipality and in the city of sancti Spiritus. A total number of 14 persons, 8 horses and 41 birds were researched to detect antibodies to flavivirus and specific antibodies to West Nile virus.

RESULTS

the presence of specific antibodies to West Nile virus was confirmed in 4 samples of sera from birds and in 4 from horses. One person was confirmed as one case of asymptomatic West Nile virus infection.

CONCLUSIONS

the presence of specific antibodies to West Nile virus in birds, horses and persons residing in areas where there are confirmed cases showed that a local amplification cycle had been established in Cuba before this study.