| direct inoculation of food as the cause of an outbreak of group a streptococcal pharyngitis. | an investigation was conducted of a food-related outbreak of group a streptococcal pharyngitis following an elementary school banquet. of 166 surveyed banquet attendees, 71 (43%) reported outbreak-associated pharyngitis, and 21 (88%) of 24 tested attendees had evidence of group a streptococcus (gas) in the throat. attendees who ate macaroni and cheese were three times more likely to develop pharyngitis than those who did not (66/132 [50%] vs. 5/30 [17%], p = .002). none of the food handlers had ... | 1993 | 8486961 |