Valneva SE commenced rolling submission for initial approval of the company’s COVID-19 vaccine candidate VLA2001 with the Medicines and Healthcare products Regulatory Agency (MHRA) in the United Kingdom.

Texas Governor Greg Abbott on May 18 ordered all government entities in the state, including school districts, to lift mask mandates by week’s end, though existing guidelines for face-coverings in schools may remain in effect through June 4.

AstraZeneca started late-stage trials of an experimental long-acting monoclonal antibody combination drug the company hopes could be used as a so-called prophylactic to prevent Covid-19 infection in at-risk people for up to 12 months.

The UK government’s Covid-19 Vaccine Taskforce and the contract research company Open Orphan announced a $13 million (£10 million) plan to test investigational vaccines in volunteers who are then intentionally exposed to SARS-CoV-2, the virus that causes Covid-19.

Novavax entered into an agreement to provide the United Kingdom with 60 million doses of the company’s Covid-19 vaccine candidate should NVX-CoV2373 be approved, as well as a late-stage efficacy study in the U.K.