asymptomatic carriage

A medical worker wearing personal protective equipment (PPE) takes a swab sample from a man, as South Africa starts to relax some aspects of a stringent nationwide coronavirus disease (Covid-19) lockdown in Diepsloot near Johannesburg, South Africa, May 8, 2020. Photo :Reuters
Coronavirus chronicle

South African studies suggest Omicron has higher 'asymptomatic carriage'

In a subgroup of the Sisonke trial evaluating the efficacy of Johnson & Johnson's Covid-19 vaccine, the mean asymptomatic carriage rate rose to 16% during the Omicron period from 2.6%...