The coronavirus pandemic will offer many lessons in what to do better to save more lives and do less economic harm the next time. But there’s already one way to ensure future pandemics are less deadly: Reform or defund the World Health Organization (WHO).

Last week Florida Senator Rick Scott called for a Congressional investigation into the United Nations agency’s “role in helping Communist China cover up information regarding the threat of the Coronavirus.” The rot at WHO goes beyond canoodling with Beijing, but that’s...