Multistate Salmonella Paratyphi B outbreak linked to sushi

| May 29, 2015

sushiThe US Centers for Disease Control and Prevention (CDC) is currently investigating a multistate outbreak of Salmonella Paratyphi B variant L(+) tartrate(+) that has been linked to the consumption of sushi made with raw tuna.

The outbreak has so far affected at least 53 people in nine states, mostly in the southwestern USA. Ten have been hospitalised but no deaths have been reported. Illness onset dates range from 5 March to 3 May 2015. DNA fingerprinting by pulsed-field gel electrophoresis (PFGE) has shown that the outbreak strain of Salmonella Paratyphi B has not been previously recorded.

Interviews with those affected by the outbreak revealed that nearly all had eaten sushi made with raw tuna during the week in which they became ill. Investigators have also identified five clusters of cases where infected people all ate at the same restaurant, attended the same event, or shopped at the same store. No common brand or supplier of raw tuna has yet been identified as the source of the outbreak but the investigation is continuing.

More information can be found here.

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