By Hub staff report

/ Published May 12, 2020

One of the more challenging aspects of the coronavirus pandemic has been the prevalence of asymptomatic cases, or people who are infected with the virus and can spread it to others but do not feel sick. In Iceland, where a broad testing effort resulted in 5% of the country’s population being tested for COVID-19, a lab study suggests that as many as 50% of people who have the disease show no symptoms. A study conducted in Singapore showed that patients with COVID-19 were able to spread the disease without showing symptoms themselves.

To learn more about the issue of asymptomatic spread of COVID-19, the Hub reached out to Gigi Gronvall, an immunologist and senior scholar

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