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Did the pandemic start with a lab leak? Is natural immunity protective? Should healthy children be vaccinated against COVID-19? Lawmakers discussed these and other questions during a hearing of the House Select Subcommittee on the Coronavirus Pandemic last Tuesday afternoon.

Underlying each of these questions were tensions over who should be trusted to answer them.

Rep. Debbie Lesko (R-Ariz.) cited reports in the media of Li-Meng Yan, MD, PhD, a Chinese virologist who said SARS-CoV-2 was "intentionally released," and that an accidental leak from a Chinese laboratory was not possible.

Marty Makary, MD, MPH, chief of islet transplant surgery, professor of surgery at Johns Hopkins University in Baltimore, and former editor-in-chief of MedPage Today, appeared to agree that a lab leak occurred. Head over to MedPage Today to read more about it.