| sero-epidemiology of rubella in imo state of nigeria. | 931 serum samples collected at random from healthy subjects in the four health zones of imo state were analysed for the presence of rubella haemagglutination inhibition antibodies. rubella antibodies were present in 625 of the samples giving a prevalence of 66.6%. there was a gradual increase in the prevalence of these antibodies with increase in age except in the age group 10 to 19 years which had a high prevalence of 80 to 90%. the distribution of antibodies appeared to be influenced by type o ... | 1985 | 3832490 |