title: An outbreak of group A food-borne streptococcal pharyngitis.
abstract: 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.
authors.affiliation: Settore Igiene Pubblica U.L.S.S. 36, Regione Veneto, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Gallo
authors.forename: R
authors.initials: R
authors.lastname: Berzero
authors.forename: N
authors.initials: N
authors.lastname: Cattai
authors.forename: S
authors.initials: S
authors.lastname: Recchia
authors.forename: G
authors.initials: G
authors.lastname: Orefici
mesh_terms: 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