| distribution of streptococcus mutans biotypes in five human populations. | the distribution of s mutans biotypes in five geographically separated human populations was investigated. samples of dental plaque were obtained from recruits at the us naval training center in orlando, fl (n=49) in san diego, calif (n=25), and in great lakes, ill (n=194), and from a sample of hawaiian school children (n=55) and saudi arabian navy personnel (n-217). cultural and biochemical methods were used for the isolation and identification of the five different biotypes of s mutans which c ... | 1977 | 264866 |