Dr. Matthew Memoli, a critic of Covid-19 vaccine mandates, is appointed acting NIH director amid a research grant freeze.

Dr. Matthew Memoli, a flu and respiratory virus expert known for questioning Covid-19 vaccine mandates, has been appointed acting director of the NIH. Memoli's appointment comes during a communication freeze by the Department of Health and Human Services, which has halted the review of grant proposals and caused uncertainty within the NIH and research community. Some hope his insider knowledge will help address these issues.