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哈尔滨市spa休闲会所,服务花样挺多的〖微10596229〗-"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.,,The man, 33, was first confirmed to be infected on March 26, and was discharged from the hospital on April 14 after recovering from the disease.,。,The findings also show that people who have had coronavirus already should nonetheless get vaccinated if and when a vaccine becomes available, the researchers was quoted as saying.,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 patient is believed to the world's first documented case of reinfection by SARS-CoV-2, the virus that causes COVID-19.,。Experts said the finding was not unexpected, given the millions of people who have been infected worldwide.。"Natural infection created immunity that prevented disease but not reinfection," she said.。"Natural infection created immunity that prevented disease but not reinfection," she said.。。‘’、..."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.。-佛山市酒店外围女模特上门〖微10596229〗-