Abstract
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.
Highlights
An outbreak of invasive group B Streptococcus (GBS) disease occurred in Singapore in mid-2015
All GBS isolates were sent to the National Public Health Laboratory and serotyped by PCR [3] and genotyped by multilocus sequence typing using a standard S. agalactiae strain [4]
We report an outbreak of invasive GBS serotype III sequence type 283 (ST283) infections in men and nonpregnant women
Summary
Seven (77.8%) of 9 ST283-infected patients had eaten raw or undercooked fish
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