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Experts from the Johns Hopkins Bloomberg School of Public Health offer science and evidence-based insights on the public health news of the day. The current focus is the novel coronavirus spreading around the world.

Jun 30, 2020

Vaccine challenge trials, in which healthy volunteers are infected with a pathogen to determine whether a vaccine works, can be done faster and with fewer participants than traditional efficacy studies. But there are downsides: challenge trials require young, healthy participants which may not help produce a...


Jun 29, 2020

COVID-19 is causing disruptions in health services around the world and new data shows that 18 million children across 68 countries are at risk of not getting vaccinated. Dr. Chizoba Wonodi, the Nigeria Country Director for the International Vaccine Access Center, and Dr. Anita Shet, a pediatric disease specialist, talk...


Jun 26, 2020

Why has the US had a harder time with the virus than Europe? Why does contact tracing seem to be working in some places but not others? Does it make sense to wear face coverings outside? Can COVID-19 be killed in the freezer? Can I get COVID-19 from a pool? What about in an elevator? Dr. Tom Inglesby of the Center for...


Jun 25, 2020

COVID-19 has seen unprecedented harassment of state and local health officials. In a bonus episode, Dr. Georges Benjamin, executive director of the American Public Health Association, talks with Dr. Josh Sharfstein about the threats facing public health officials in the pandemic.


Jun 25, 2020

Public health’s focus on the root causes of disease and injury mean the intersecting crises of COVID-19 and racism provide a critical opportunity for the field. Dr. Georges Benjamin, the executive director of the American Public Health Association, talks with Dr. Josh Sharfstein about the sector’s reckoning with...