Vibriocidal and agglutinating antibodies in the urban population in the municipality of Manacapuru/AM (1992-1993)

A serological study was carried out involving 1,196 individuals residents in the urban area of Manacapuru--Amazonas, to evaluate the behavior of vibriocidal and agglutinating antibodies. A systematic random sampling procedure was employed to obtain the sample. A year later a 2nd sample of serum was obtained from 120 individuals selected among the participants of the survey. Vibriocidal antibodies microtitulation and seroagglutination in tubes were employed. The correspondence between the studied antibodies was determined by the correlation coefficient calculated according to the frequency of the titles detected. The analysis of the results revealed positive correlation between the antibodies (r = 1.0) and a decrease in titles in a large proportion of the positive samples one year later.