| asymptomatic shigella infections in a cohort of mexican children younger than two years of age. | the proportion of shigella infections that occur asymptomatically in young children has not been established. a community-based cohort study of 367 infants was followed prospectively by weekly home visits from january, 1990, through december, 1991. stool samples were collected weekly and when diarrhea occurred and were tested for shigella and other enteropathogens. there were 2925 child months of observation and 65 episodes of shigella infection. there were 3.1 episodes/100 child months during t ... | 1994 | 7970946 |