Novavax Inc. backed off its guidance of submitting an EUA for its COVID-19 vaccine in June, pushing the anticipated date to this fall. “We expect to complete regulatory filings in the third quarter,” Stan Erck, Novavax’s president and CEO, told investors on a May 10 conference call. “We hope to have market authorizations in multiple countries in the third quarter, as early in the quarter as possible.”

A Korean/U.S. collaborative study has shown that increased circulating mitochondrial N-formyl peptide contributes to development of secondary hospital-acquired (nosocomial) infections and increased mortality in septic shock patients who survived the early hyperinflammatory phase.

Vaccitech plc and Werewolf Therapeutics Inc. opened the last day of April with contrasting IPOs. Both priced mid-range, with Vaccitech raising $110.5 million, similar to Werewolf's $120 million haul. However, American depository shares of Vaccitech (NASDAQ:VACC), co-developer of Astrazeneca plc’s COVID-19 vaccine, fell 17.1% to $14.10 from a $17 open, while shares of cancer therapy developer Werewolf (NASDAQ:HOWL) boomed – until they didn't – climbing to $24 before closing about where they started, at $16.10.