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Asymptomatic Cases May Not Be Infectious - The Colin & Casey Show Ep 8
Asymptomatic Cases May Not Be Infectious - The Colin & Casey Show Ep 8
A mass screening program of more than 10 million residents of Wuhan, China, performed after SARS-CoV-2 was brought under control, has identified 300 asymptomatic cases of covid-19, none of which was infectious. The findings cannot be extrapolated to countries where outbreaks have not been brought under control successfully, said the authors of the report, which was published in Nature Communications. The researchers conducted a screening program using PCR testing for viral RNA among the 10 million participants who were aged between 10 and 89. Trained staff interviewed participants on their history of covid-19. Asymptomatic positive cases were those who had a positive result on screening with neither a history of covid-19 diagnosis nor any clinical symptoms at the time of the nucleic acid testing. The researchers found no “viable virus” in cultures from asymptomatic samples. The asymptomatic positive rate was lowest in participants aged under 17 and highest in those over 60. Further swab testing of 1174 close contacts of the 300 asymptomatic positive cases were all negative. The study population included 34 424 people with a history of covid-19, 107 of whom (0.310%) had been re-infected. References: WATCH THE VIDEO: JOIN THE COMMUNITY: