An outbreak of group A food-borne streptococcal pharyngitis.
A food-borne outbreak of pharyngitis from group A streptococcus developed in people attending wedding banquets in the same restaurant on July 5-8, 1986. Of the 300 people interviewed, 179 reported illness; pharyngeal swabs were taken from 115 ill people; from 63 (53%) of them group A streptococci, belonging to serotype T28, M28, were isolated. Statistical analysis performed using chi-square and Cochran's test showed that a prawn hors-d'oeuvre served on July 5 and squills or/and custard cake served on July 7 could have been a possible source of infection. Six people on the staff, 5 of whom belonged to the family of the restaurant manager, and the manager's three young daughters were colonized by the same group A serotype. A possible previous diffusion of the strain among the staff followed by contamination of the food was suspected.
Gallo
G
G
Settore Igiene Pubblica U.L.S.S. 36, Regione Veneto, Italy.
Berzero
R
R
Cattai
N
N
Recchia
S
S
Orefici
G
G
D000208:Acute Disease; D016009:Chi-Square Distribution; D004196:Disease Outbreaks; D005260:Female; D005516:Food Microbiology; D006801:Humans; D007558:Italy / Q000453:epidemiology; D010612:Pharyngitis / Q000453:epidemiology* / Q000382:microbiology; D012758:Shellfish; D013290:Streptococcal Infections / Q000453:epidemiology*; D013297:Streptococcus pyogenes; D011795:Surveys and Questionnaires