An experimental new type of antibody drug from IGM Bioscience Inc. may be more potent at inhibiting the coronavirus and its variants than antibody therapies currently in use, research in mice suggests. Vaping has been linked with higher rates of Covid-19 in some studies.

Coronavirus variants with clunky, alphanumeric names have now been assigned the letters of the Greek alphabet to simplify discussion and pronunciation while avoiding stigma.

Authorities in Vietnam detected a new coronavirus variant that is a combination of the Indian and UK Covid-19 variants and spreads quickly by air, the health minister said on May 29.

France’s Sanofi and Britain’s GlaxoSmithKline launched a late-stage human trial for a recombinant Covid-19 vaccine candidate on May 27 which they hope to get approved by the end of 2021.

Months after recovery from mild Covid-19 – when antibody levels in the blood have declined – immune cells in bone marrow remain ready to pump out new antibodies against the coronavirus, researchers reported on May 24 in Nature. And according to a new U.S. study, young children appear to be significant carriers of more contagious variants of the new coronavirus, such as the ones identified in the UK and in California.

Antiviral pills against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the novel coronavirus responsible for coronavirus disease 2019 (Covid-19), are showing promise in new clinical trials.

A double dose of Covid-19 vaccines is almost as effective against the fast-spreading variant of the coronavirus first identified in India as it is against Britain’s dominant strain, English health officials said on May 22.

Two doses of the Oxford/AstraZeneca Covid-19 vaccine are around 85 percent to 90 percent effective against symptomatic disease, Public Health England (PHE) said on May 20, citing an analysis of real-world data from the rollout of the shot.

The U.S. Centers for Disease Control and Prevention (CDC) on May 13 advised that fully vaccinated people do not need to wear masks outdoors and can avoid wearing them indoors in most places, updated guidance the agency said will allow life to begin to return to normal. Reuters lays out some of recent scientific evidence on which the CDC and Director Rochelle Walensky based their updated guidelines, including vaccine efficacy against virus variants, increased availability and a reduction in cases.

Prime Minister Narendra Modi sounded the alarm over the rapid spread of Covid-19 through India’s vast countryside on May 14, as 4,000 people died from the virus for the third straight day and total infections crossed 24 million.