MD MPH. Formerly WHO Representative at the EU and Chief Scientist. Now advisor of the Qatar Health Minister. Passionate about public health, science and policy.
Mutations could have accumulated in a chronically infected patient, an overlooked human population, or an animal reservoirscience.org
With a worrisome number of mutations and a spike of cases in Southern Africa, omicron is the latest COVID-19 variant of concernhub.jhu.edu
A new review of early Covid-19 cases in the journal Science will revive, though certainly not settle, the debate over how the pandemic began.nytimes.com
The risk of contagion is highest in indoor spaces but can be reduced by applying all available measures to combat infection via aerosols. Here is an overview of the likelihood of infection in three...elpais.com