| serogroups of beta-haemolytic streptococci isolated from clinical specimens in parts of eastern nigeria. | from 470 patients, mainly of respiratory infection, attending university of nigeria teaching hospital, enugu, nigeria 212 (45 per cent) strains of beta-haemolytic streptococci were isolated and 25 per cent of the isolates belonged to group b streptococcus. percentage isolation of other groups was a(21.2), g(20.3), c(16.1), d(10.8) and f(5.2). maximum (11.2 per cent) isolates were from age group of 5-17 years. all serogroups were sensitive to penicillin g and ampicillin despite the prevalent misu ... | 1990 | 2098432 |