The striking overlap between risk factors for severe covid-19 and those for vitamin D deficiency—older age, obesity, and […]

Who were the UK’s biggest rulebreakers?Politicians and their advisers must be up there. Under Boris Johnson, 10 Downing […]

The results of 12 clinical trials conducted in India looking at the efficacy of molnupiravir —an antiviral drug […]

Pregnant women experienced lower rates of significant adverse events after vaccination with a covid-19 mRNA vaccine than a […]

When and where were these subvariants detected?BA.4 and BA.5 were first detected in South Africa in January and […]

Soon after the omicron SARS-CoV-2 variant of concern was first reported to the World Health Organization on 24 […]

At least 14 hospitals in Canada’s most populous province are operating without key services this weekend as exhausted […]

NHS staff absences in England reached the highest peak in July since mid-April, amid continuing high numbers of […]

The United States has joined a handful of countries recommending that children aged 6 months to 5 years […]

The UK government’s failure to follow basic rules in awarding £777m of contracts for covid-19 testing to the […]