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Seroprevalence of antibodies to Venezuelan equine encephalitis complex (subtypes IAB and VI) in humans from General Belgrano Island, Formosa, Argentina

DOI: 10.1590/S0036-46652003000400005

Keywords: alphavirus, togaviridae, vee, seroprevalence, humans, argentina.

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this work presents the results of the detection of antibodies (immunoglobulin g) for subtypes i and vi of vee viruses complex (togaviridae family) in people from the general belgrano island, formosa province (argentina). the prevalence of neutralizing (nt) antibodies for subtype vi was from 30% to 70% and the prevalence of antibodies inhibitory of hemagglutination (hi) was of 0% in the first and second inquiry respectively. for the subtype iab the prevalence of nt antibodies was from 13% to 3.6%, similar to the prevalence total for both subtypes. hi antibodies were not detected in any inquiries for any subtype. it was observed that both subtypes circulate simultaneously, while subtype vi remains constant with some peaks, subtype i was found in low level.


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