Group B Streptococcus Sequence Type 283 Disease Linked to Consumption of Raw Fish, Singapore

An outbreak of invasive group B Streptococcus. (GBS) disease occurred in Singapore in mid-2015. We conducted a case control study of 22 adults with invasive GBS infections during June 21 November 21, 2015. Consumption of raw fish was strongly associated with invasive sequence type 283 infections, but not with non sequence type 283 infections.