variants

Europe staggers as infectious variants increase the wave of viruses

How Covid’s different vaccines will deal with new variants of the virus

US experts warn new variants of Covid and say reopening could lead to fourth wave | Coronavirus

An expert answers 3 questions about COVID-19 vaccines, variants

More than 2,750 cases of coronavirus variants reported in the USA

New evidence for COVID-19 antibodies, less effective vaccines against variants

Covid-19 symptoms: what scientists are learning about Covid Long and the new variants

Modified COVID-19 vaccines that target variants can skip lengthy tests, says the UK

What happens when people are infected with 2 strains of COVID at the same time?

The response of T cells to variants of the virus remains potent; Asthma does not increase the serious risk of COVID-19

The response of T cells to variants of the virus remains potent; Asthma does not increase the serious risk of COVID-19

Outbreak of COVID in Brazil could lead to ‘more lethal variants’