Mary Wilson
Well-known member
Published Online February 17, 2023
https://doi.org/10.1016/ S1473-3099(23)00112-3
Junyuan Huang†, Shi Zhao†, Ka Chun Chong†, Yingchun Zhou, Weiguo Lu, Fang Fang, Peter Pak Hang Cheung, Kiu Cheung Lai, David SC Hui, *Chris Ka Pun Mok
On Dec 7, 2022, the Chinese government announced ten measures indicating the end of the zero- COVID policy, which was in effect for more than 2 years.1 Most of the stringent preventive measures, such as mandatory PCR testing, are no longer required. However, easing of restrictions has contributed to the emergence of new outbreaks predominantly by the SARS-CoV-2 omicron lineages BA5.2 and BF.7 in many cities, such as Beijing.2With suspension of mass testing in mainland China after adjustment of the zero-COVID policy, empirical data on the epidemic growth and transmissibility of omicron variants are scarce. Until now, the number of infected cases and transmission rates were usually estimated using modelling with partial data.3Previously, we reported that presence of the ORF8 antibody in blood is one of the most accurate serological markers of SARS-CoV-2 natural infection.4,5
...
https://www.thelancet.com/action/showPdf?pii=S1473-3099(23)00112-3
https://doi.org/10.1016/ S1473-3099(23)00112-3
Junyuan Huang†, Shi Zhao†, Ka Chun Chong†, Yingchun Zhou, Weiguo Lu, Fang Fang, Peter Pak Hang Cheung, Kiu Cheung Lai, David SC Hui, *Chris Ka Pun Mok
On Dec 7, 2022, the Chinese government announced ten measures indicating the end of the zero- COVID policy, which was in effect for more than 2 years.1 Most of the stringent preventive measures, such as mandatory PCR testing, are no longer required. However, easing of restrictions has contributed to the emergence of new outbreaks predominantly by the SARS-CoV-2 omicron lineages BA5.2 and BF.7 in many cities, such as Beijing.2With suspension of mass testing in mainland China after adjustment of the zero-COVID policy, empirical data on the epidemic growth and transmissibility of omicron variants are scarce. Until now, the number of infected cases and transmission rates were usually estimated using modelling with partial data.3Previously, we reported that presence of the ORF8 antibody in blood is one of the most accurate serological markers of SARS-CoV-2 natural infection.4,5
...
https://www.thelancet.com/action/showPdf?pii=S1473-3099(23)00112-3