In August 2021, three
students with
diarrhea from the same
school visited a local
hospital in the S district of
Beijing. An
epidemic investigation showed that there were more
students with
diarrhea in the same
school and they had one
meal together.
Campylobacter jejuni was isolated from both
patients with
diarrhea and asymptomatic
food handlers; however, the latter also carried
Campylobacter coli. Phylogenomic
analysis showed that there was a
campylobacteriosis outbreak among the
students, and the asymptomatic
food handler may have been the source of the
infection. Routine inspection and
surveillance for
Campylobacter is needed for the
food producing staff, particularly those
cooking in the cafeteria in
schools or other public
food services.