• “Serious scientific questions” about the hydroxychloroquine paper lead Lancet to issue an Expression of Concern; an independent peer review is launched. Source
• A trial of hydroxychloroquine as prophylaxis for COVID-19 reports that using the drug four days after exposure did not prevent illness. Source
• OWS announces the five companies likely to have promising vaccine candidates: Moderna, Oxford University/AstraZeneca, Johnson & Johnson (J & J); they have already received US $2.2 billion of government funding to develop their candidates) Merck and Pfizer, The New York Times describes OWS as “…a sprawling, on-the-fly experiment in industrial policy by a Republican administration that has been otherwise dedicated to giving private industry a free hand,” noting that no details on vaccine pricing and IP ownership have been released. Source
• According to an Associated Press report, China withheld key information from WHO about human-to-human transmission of the coronavirus, and delayed the release of the SARS-CoV-2 genome for over a week. Source
