Objective To understend the source and risk factors of the first human infection with Streptococcus suis in Susong County by analyzing the epidemiological data. Methods Clinical manifestations and other clinical data were collected, epidemiological history of the cases was investigated, blood samples of patients and swab samples of pig pharynx were collected for cultivation. Results According to the epidemiological history, clinical manifestations, persistent decrease of platelets, increase of absolute number of neutrophils and detection of Streptococcus suis serotype 2 strains in blood and cerebrospinal fluid of patients, it was judged that the patient was infected with Streptococcus suis.Patient engaged in pig by-product processing, without personal protective measures, was the risk factor of infection. Conclusion The patient is the first case of human infection with Streptococcus suis in Susong County.Strengthening pig quarantine and personal protection of slaughters and processors are important measures to prevent and control human infection with Streptococcus suis.
Key words
Human infection with Streptococcus suis /
Investigation /
Case report
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