The UK’s deployment of COVID-19 vaccines has left vaccine manufacturers worried about emerging discussions on dosing strategies that may not be supported by authorized labeling or published clinical data.

The UK government says it is on track to vaccinate the 15 million most vulnerable people by mid-February, and that a “major study” is under way to assess the potential impact of the new UK variant on vaccine efficacy.

One year after the first cases of a novel coronavirus emerged in Wuhan, a team from the World Health Organization has arrived in the city to investigate its origin. Meanwhile, mixed results are reported for some of the leading Chinese vaccines being developed to fight the pandemic still wreaking global havoc.

Proposal, which would increase capacity for pandemic supplies, is similar to ideas President Trump embraced pre-pandemic.