Investigations on the presence of antibodies to alphaviruses, flaviviruses, Bunyavirus and Kemerovo virus in humans and some domestic animals.

The presence of antibodies to some alphaviruses, flaviviruses, bunyaviruses and orbiviruses was studied in the sera from humans and domestic animals of biotopes "C" and "T" in the south-east of Romania. Specific antibodies were found in humans to 3 alphaviruses (eastern equine encephalitis, western equine encephalitis and Sindbis), in a very low proportion, and to 3 flaviviruses (tickborne encephalitis, West Nile and Ntaya), at a much higher percentage. Very low percentages of antibodies to Bunyavirus and Kemerovo virus were also detected. The proportion of antibodies to flaviruses (tick-borne encephalitis, West Nile and Ntaya) detected in domestic animals (sheep, cattle and swine) is much lower than that found in humans of the same biotope ("T").