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昆明市酒店外围模特上门〖微10596229〗-,Cases of presumed reinfection have been reported previously, but none have been confirmed with rigorous testing. Recovered people are known to carry viral fragments for weeks, which can lead to positive test results in the absence of live virus.,He tested positive again during the entry screening at the Hong Kong airport on Aug 15 when he returned from a trip in Spain via the United Kingdom. The man was hospitalized again and remained asymptomatic, said the research team of the University of Hong Kong.,,Cases of presumed reinfection have been reported previously, but none have been confirmed with rigorous testing. Recovered people are known to carry viral fragments for weeks, which can lead to positive test results in the absence of live virus.,"The second infection was completely asymptomatic – his immune response prevented the disease from getting worse," Akiko Iwasaki, an immunologist at Yale University was quoted as saying by New York Times.。,,But the Hong Kong researchers sequenced the virus from both of the man's infections, and found significant differences, suggesting that the patient had been infected a second time.;,But the Hong Kong researchers sequenced the virus from both of the man's infections, and found significant differences, suggesting that the patient had been infected a second time.,Cases of presumed reinfection have been reported previously, but none have been confirmed with rigorous testing. Recovered people are known to carry viral fragments for weeks, which can lead to positive test results in the absence of live virus.。。。。A man living in Hong Kong has been infected by the novel coronavirus for the second time, according to a research by the University of Hong Kong.。He tested positive again during the entry screening at the Hong Kong airport on Aug 15 when he returned from a trip in Spain via the United Kingdom. The man was hospitalized again and remained asymptomatic, said the research team of the University of Hong Kong.‘’"The case illustrates that reinfection can occur even just after a few months of recovery from the first infection. Our finds suggest that SARS-CoV-2 may persist in humans, as is the case for other common cold-associated human coronaviruses, even if patients have acquired immunity via natural infection or via vaccination," the researchers told CNN.、..."The second infection was completely asymptomatic – his immune response prevented the disease from getting worse," Akiko Iwasaki, an immunologist at Yale University was quoted as saying by New York Times.。-济南市红灯区模特特殊服务〖微10596229〗-