In November 2011, a cluster of initially five cases of hepatitis A infection with closely related strains was identified in the Netherlands. England reported possibly related cases. Strains with identical sequences had been involved in previous outbreaks linked to semi-dried tomatoes. Investigation of the Dutch cluster suggested a link with ready-to-eat salads including those containing semi-dried tomatoes. Despite traceback, a source was not identified. Vigilance is needed, and rapid sharing of data may help source-tracing.
|Publication status||Published - 1 Feb 2012|