A leading expert who helped create the Oxford-AstraZeneca Covid-19 vaccine said Tuesday that giving everyone in the world booster shots multiple times a year is not feasible.
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The findings drawn from datasets in Brazil and Scotland suggest that booster programmes are needed to help maintain protection from severe disease in those vaccinated with AstraZeneca, known as Covishield in India.
The US government-sponsored trial is the first major US study to compare the effects of using different vaccines as boosters from the initial shot or shots.
The U.K. Obstetric Surveillance System found that the proportion of pregnant people hospitalized with moderate to severe illnesses has increased with the highly contagious delta variant.
Social media is rife with posts disparaging the vaccine hesitant – but these reactions to a complex and nuanced issue are doing more harm than good.
Women may be more likely than men to suffer unusual blood clots after being vaccinated with AstraZeneca’s Covid-19 jab, although the difference is not significant, the UK's medicines regulator has said in its weekly report.
Bereaved families welcome decision to offer Pfizer or Moderna vaccine, based on age and clinical risk
Pregnant women should be offered a Covid jab when other people their age get one, the UK's vaccine advisers say.
China's top health official had admitted domestically produced jabs have low rates of protection.
I was over the moon to get vaccinated. I've covered the coronavirus pandemic, including the race to develop a vaccine, since only a handful of people were infected in Wuhan.
Dr Ozlem Tureci told a WHO briefing that gender equality helped the company act with such speed in developing a Covid-19 vaccine.
"We are still not where we want to be," Ursula von der Leyen told European Parliament lawmakers in Brussels on Wednesday.
Something has gone badly wrong with the EU's rollout of the Covid vaccine. Yet in its response to this debacle, Brussels seems determined to double down, engaging in behaviour of the pettiest kind as it blames everyone but itself for wha...
Convincing medical staffers to get vaccinated will be a crucial first step in convincing everyone else.
Its 90% effectiveness is as good as it gets, and bodes well for other vaccines. But getting them quickly to the right people will be hard