The UK Health Security Agency designated a Delta coronavirus subvariant called AY.4.2 as a “Variant Under Investigation,” saying there was some evidence that it could be more transmissible than Delta.

Pfizer, Moderna, and AstraZeneca have been running “dress rehearsals” by adapting their current formulations of Covid-19 vaccines to match present known SARS-CoV-2 variants.

British health authorities, as well as global experts, are closely watching a subtype of the Delta variant that appears to be rising in the UK.

The Delta variant of the coronavirus does not appear to cause more severe disease in children than earlier forms of the virus, a UK study suggests. Another study found that in Covid-19 survivors, important components of the body’s immune response called memory B cells continue to evolve and get stronger for at least several months, producing highly potent antibodies that can neutralize new variants of the virus.

On World Mental Health Day (October 10), medical health charity You Okay, Doc? and health communications agency VMLY&Rx pledge their support to physicians worldwide, calling for more awareness and support for the mental health of doctors.

Britain’s state-run National Health Service will on Sept. 13 begin the world’s biggest trial of Grail Inc.’s flagship Galleri blood test that can be used to detect more than 50 types of cancer before symptoms appear.

Former British prime minister Gordon Brown accused rich countries of committing a “moral outrage” by stockpiling Covid-19 doses while poor countries struggle to get supplies.

In line with growing concerns that certain Covid-19 vaccines are causing unusual blood clotting problems, a group of scientists from the U.K. conducted a massive study on the link between vaccinations and dropping platelet counts and found that the problem lies more on the virus itself than on the medications. 

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.

The UK drug regulator approved an antibody cocktail developed by Regeneron and Roche to prevent and treat Covid-19, as the nation battles rising hospitalizations due to the more infectious Delta variant.