{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,2]],"date-time":"2025-10-02T13:31:57Z","timestamp":1759411917103},"reference-count":41,"publisher":"Cambridge University Press (CUP)","issue":"12","license":[{"start":{"date-parts":[[2010,8,27]],"date-time":"2010-08-27T00:00:00Z","timestamp":1282867200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Epidemiol. Infect."],"published-print":{"date-parts":[[2010,12]]},"abstract":"<jats:title>SUMMARY<\/jats:title><jats:p><jats:italic>Salmonella<\/jats:italic>Paratyphi A (SPA) is rapidly becoming a common cause of enteric fever in South East Asia. A large outbreak of SPA occurred in a boarding middle school in China in 2004. There were 394 suspected cases; 95\u00b75% were students. The highest incidence was in the youngest children (7th grade). Forty-four of 151 (29%) blood cultures and 4\/54 (7\u00b74%) rectal swabs were positive for SPA; three were from kitchen workers. The geometric mean levels of serum IgG anti-lipopolysaccharide (anti-LPS) from patients was higher than from healthy individuals [35\u00b725 vs. 5\u00b720 ELISA units (EU), P&lt;0\u00b7001]. A kitchen worker with a positive rectal swab, negative blood culture and a high level of serum IgG anti-LPS (529\u00b765 EU), was identified as a possible SPA carrier. No SPA was isolated from water or food samples. A survey of students' habits indicated drinking unboiled water as being the main reason for contracting the disease. Hand washing was the second most important factor. A food handler with possible SPA carriage could also have been a risk factor. Attention to maintaining a safe water supply, enhancing food-handler hygiene and proper hand washing can help to prevent similar outbreaks in the future.<\/jats:p>","DOI":"10.1017\/s0950268810001986","type":"journal-article","created":{"date-parts":[[2010,8,27]],"date-time":"2010-08-27T12:52:12Z","timestamp":1282913532000},"page":"1765-1774","source":"Crossref","is-referenced-by-count":9,"title":["An outbreak of<i>Salmonella<\/i>Paratyphi A in a boarding school: a community-acquired enteric fever and carriage investigation"],"prefix":"10.1017","volume":"138","author":[{"given":"H. H.","family":"YANG","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.","family":"GONG","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.","family":"ZHANG","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M. 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