Trust in public health institutions has fractured since the covid-19 pandemic began, even as the threat of new outbreaks remains. Ebola is spreading in parts of Central Africa. Hantavirus has left some cruise ship passengers under quarantine. Neither is a repeat of covid-19 — and public health officials say the risk to most Americans remains low — but even distant outbreaks now provoke fear, skepticism and debate.Host Megan McArdle talks with physician and Washington Post contributing columnist Leana S. Wen about what we learned from covid-19, why trust in public health infrastructure has become so fragile and whether America is better prepared for the next serious outbreak — or simply more exhausted and distrustful.