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Articles on Epidemiology

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By setting out the continent’s research priorities, scientists can focus better on what needs to be done. Maliutina Anna/Shutterstock

Africa’s scientists set out their COVID-19 research priorities

Some of the priorities were drawn from the World Health Organisation's Roadmap; others were expressed by researchers in and from Africa as being important to the continent's many contexts.
It’s not yet clear whether antibodies in the blood of patients who have been infected with SARS-CoV-2 indicate immunity. Above: blood specimens for COVID-19 antibody tests. (AP Photo/Mary Altaffer)

Can antibody tests tell us who is immune to COVID-19?

Immunity to COVID-19 may be complicated. Here are the promises and pitfalls of antibody tests.
The spread of diseases is akin to a maze of toppling dominoes. dowell/Getty Images

What’s an epidemiologist?

Epidemiologists focus on diseases among groups of people. They also study the spread of disease among animals.

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