Focus on Norchem Inc., Elkem AS, Cement Industries Inc., Dow Corning Corporation and Wuhan Newreach Microsilica Co., Ltd. – Bisouv Network
The study reveals that 7% of Wuhan residents developed antibodies to the coronavirus during the outbreak
Lancet: A seroprevalence study from Wuhan suggests that 6.9% of the population had antibodies to COVID-19 by April 2020 – including 40% with neutralizing antibodies lasting at least 9 months – but 82% of cases were asymptomatic
