| zika virus infections in nigeria: virological and seroepidemiological investigations in oyo state. | a study of zika virus infections was carried out in four communities in oyo state, nigeria. virus isolation studies between 1971 and 1975 yielded two virus isolations from human cases of mild febrile illness. haemagglutination-inhibition tests revealed a high prevalence of antibodies to zika and three other flaviviruses used. the percentages of positive sera were as follows: zika (31%), yellow fever (50%), west nile (46%), and wesselsbron (59%). neutralization tests showed that 40% of nigerians ... | 1979 | 489960 |
| human arthropod-borne virus infections in nigeria. serological and virological investigations and shaki, oyo state. | during the early dry season of 1972, an arbovirus surveillance was carried out is shaki. on hundred and twenty human blood samples and 304 sera were processed for virus isolation and serology respectively. a high prevalence of antibodies to 8 arbovirus antigens was found in the community. percentage of positive sera was as follows: chikungunya (24%) sindbis (19%), yellow fever (55%), dengue (54%), west nile (58%) and wesselsbron (67%). human infections by ilesha virus (35%) and ingwavuma (15%) ... | 1978 | 570581 |
| west nile complement fixing antibodies in nigerian domestic animals and humans. | a survey for west nile complement fixing (cf) antibody was carried out in humans and domestic animals in nigeria. human sera were obtained from two communities namely ibadan and ogbomoso but animal sera were collected from ibadan and maiduguri. the overall cf antibody to west nile virus in the two localities surveyed was 65%. of 170 persons tested, 53% and 75% were positive in ibadan and ogbomoso respectively. antibody prevalence increased with age in both communities. tests for antibody against ... | 1990 | 2100749 |