Most children with Covid-19 only develop mild symptoms or no symptoms at all. However, children are not without risk of becoming seriously ill, and they can still spread the virus. File photograph: iStock

US regulators on Monday authorised Pfizer and BioNTech’s Covid-19 vaccine for use in children as young as 12, widening the country’s inoculation progr(...)

US president Joe Biden: “Democrats and Republicans, people of all persuasions, are getting vaccinated.” Photograph: Alex Edelman

US president Joe Biden unveiled a fresh drive to accelerate the covid vaccination rollout in the United States, including a commitment to extend vacci(...)

Syringes with the Pfizer vaccine ready to be distributed in Michigan. Photograph: Emily Rose Bennett/New York Times

Millions of Americans are not getting the second doses of their Covid-19 vaccines, and their ranks are growing. More than five million people, or near(...)

Covid shots: ‘If you are truly a moderate drinker, then there’s no risk of having a drink around the time of your vaccine,’ says virus researcher Ilhem Messaoudi. Photograph: Tony Cenicola/NYT

After a long year and a lot of anticipation, getting the Covid-19 vaccine can be cause for celebration – which might mean pouring a drink and toasting(...)

A  woman gets a dose of a Covid-19 vaccine in New Delhi, India. Some 11 million have received two doses in India as the country tries to build immunity to protect its population of nearly 1.4 billion people. File photograph: EPA

India has recorded its highest-ever number of daily Covid-19 cases as its fight to curtail a renewed wave of infections is beset by vaccine shortages (...)

BioNTech employees test the procedures for the manufacturing of the messenger RNA (mRNA) for the Covid-19 vaccine in Marburg, Germany. Photograph: Thomas Lohnes / AFP

Pfizer and BioNTech said that clinical trial data suggested their Covid-19 jab could be effective against the more contagious B.1.351 mutation, which (...)

Pfizer said children had side effects similar to young adults, mainly pain, fever, chills and fatigue. Photograph: AFP via Getty

Pfizer has announced its Covid-19 vaccine is safe and strongly protective among children as young as 12. Most Covid-19 vaccines being rolled out worl(...)

Roche,  is making the drug at plants in California. Photograph: Sebastien Bozon/AFP/Getty Images

New late-stage trial data show Regeneron and Roche’s antibody cocktail against Covid-19 cut hospitalisation or death by 70 per cent versus a placebo i(...)

Data from  AstraZeneca’s Covid-19 vaccine trial that showed it was 79 per cent effective has been questioned by US health authorities. Photograph: Justin Tallis/AFP via Getty Images

AstraZeneca may have used “outdated information” in the results of a large-scale Covid-19 vaccine trial, a US health agency said on Tuesday, casting f(...)

AstraZeneca’s Covid-19 vaccine  was 79 per cent effective in preventing symptomatic illness, the trial found. Photograph: Gent Shkullaku/AFP via Getty Images

The Covid-19 vaccine developed by Oxford University and AstraZeneca was 79 per cent effective in preventing symptomatic illness in a large trial in th(...)

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