not sought at that time.Clifton Rd., Atlanta, GA 30333 (qzs32@cdc.gov).Several molecular subtyping schemes for S. sonnei have been isolation to reflect the beginning, peak, and end of the outbreak.Isolates were tested for susceptibility to chloramphenicol, trimethoprim-sulfamethoxazole, tetracycline, ampicillin, sulfisoxazole, streptomycin, gentamicin, amoxicillin-clavulanate, and kanamycin. MethodsEpidemiologic investigation. Shigella outbreaks were reported in several traditionally observant Jewish communities in North

In the fall of 1985, an outbreak of giardiasis occurred among several swimming groups at an indoor pool in northeast New Jersey. Nine clinical cases were identified, eight of whom had Giardia positive stool specimens. All were female; seven were adults (>18 years) and two were children. The attack rate was highest (39 per cent, 5/13) for the ladies lap group who had exposure on one day. These cases had no direct contact with children or other risk factors for acquiring Giardia. Infection most likely occurred following the ingestion of swimming pool water contaminated with Giardia cysts. The source of Giardia contamination was a handicapped child who had a fecal accident in the pool. He was a member of a group that IntroductionTransmission of Giardia lamblia occurs by ingestion of cysts in fecally contaminated water, and less often from fecally contaminated food.' The parasite can also be transmitted from person to person via an infected individual; this often occurs in institutions and day care centers.2The majority of reported outbreaks of Giardia have been

From 31 March through 3 April 1991, 8 New Jersey residents developed severe, watery diarrhea after eating crabmeat brought back in the suitcase of a traveler to Ecuador. Stool cultures yielded toxigenic Vibrio cholerae O1, serotype Inaba, biotype El Tor from 4 persons, and vibriocidal antibody titers were > or = 1:640 in 7 persons, indicating recent infection with Vibrio cholerae O1. Eating crab was statistically associated with illness (P = .006); however, no leftover crabmeat was available for testing. All 8 patients fully recovered and no cases of secondary transmission were reported. This was the first reported incident of cholera in the continental United States associated with food transported from an area with epidemic disease. Discouraging the transport of perishable souvenir seafood may prevent further outbreaks.