Epidemiological investigation of an incident of suspected intentional transmission of AIDS
CHU Kun1, SHI Xiaojun2, JIANG Haibo1, PEI Xueli2, TAN Shiwen1, SHI Hongbo1, YE Zehao1, YANG Jianhui1, ZHANG Dandan1,3
1. Ningbo Center for Disease Control and Prevention, Ningbo, Zhejiang 315000, China; 2. Beilun District Center for Disease Control and Prevention, Ningbo, Zhejiang 315800, China; 3. Zhejiang Association of STD and AIDS Control and Prevention, Hangzhou, Zhejiang 310003, China
Abstract：On 18 May 2021, the Center for Disease Control and Prevention (CDC) of X District in P City, Z Province received a co-investigation of a suspected case of intentional HIV transmission from the public security branch, and conducted epidemiological investigations on Zhao and Wang (both males). Wang was confirmed HIV-positive in 2019. Zhao had unprotected sexual encounters several times with Wang in March 2021 without being informed of Wang's HIV infection. Zhao developed fever, sore throat and other symptoms of acute infection phase on 28 March, and were confirmed HIV positive by the CDC of P City on 11 May. Zhao did not have sex with anyone else before or after having sex with Wang. In addition, Zhao had no history of surgery, blood transfusions, drug use or any other history of HIV exposure. Laboratory tests conducted by the CDC of Z Province showed that the HIV nucleic acid sequences between the samples of Zhao and Wang had a high degree of homology. Combined with the epidemiological investigation, laboratory testing and the evidence from the public security branch, it was concluded that Wang intentionally transmitted HIV to Zhao through unprotected anal sex without disclosing his HIV infection status.
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