ZIKA VIRUS-INFECTIONS IN NIGERIA - VIROLOGICAL AND SEROEPIDEMIOLOGICAL INVESTIGATIONS IN OYO STATE
ZIKA VIRUS-INFECTIONS IN NIGERIA - VIROLOGICAL AND SEROEPIDEMIOLOGICAL INVESTIGATIONS IN OYO STATE
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DOI:
10.1017/s0022172400025997
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发表时间:
1979-01-01
影响因子:
--
通讯作者:
FAGBAMI, AH
中科院分区:
文献类型:
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作者:
FAGBAMI, AH
A study of Zika virus infections was performed in 4 communities in Oyo State, Nigeria. Virus isolation studies between 1971 and 1975 yielded 2 virus isolations from human cases of mild febrile illness. Hemagglutination-inhibition tests revealed a high prevalence of antibodies to Zika and 3 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 had Zika virus neutralizing antibody. Of Zika virus immune persons, 50% had neutralizing antibody to Zika alone or to Zika and 1 other flavivirus. A total of 121 sera had antibody to Zika virus; of these, 48 (40%) also showed antibody to 2 other flaviviruses, and 12 (10%) had antibodies to 3 or more other viruses. The percentage of neutralizing antibodies to other flaviviruses in Zika virus immune sera was 81% to Dengue type 1, 58% to yellow fever, 7% to Wesselsbron, 6% to West Nile and 3% to Uganda S.