The research, published in the journal Nature Communications on June 28, found that the immune response was as strong against the Alpha variant first identified in the UK, as against the original virus found in Wuhan, China in 2019.
The Com-Cov trial, led by researchers from the University of Oxford, looked at the efficacy of either two doses of Pfizer, two of AstraZeneca, or one of them followed by the other.
China has approved the emergency use of its Sinovac vaccine for children as young as three-year-old, while the US has green-lighted the Pfizer jab for those as young as 12, reports Xinhua news agency.
The study, led by researchers from the University College London, in the UK showed that the protective effect of a single dose of vaccination is evident from 4 weeks to at least 7 weeks after vaccination.
As the Covid vaccination drive is underway in the country, Pfizer CEO Albert Bourla on Tuesday said that its vaccine is in the final stages to get approval in India.
The United States has announced a plan to share 55 million of the 80 million Covid-19 vaccine doses promised to the world by President Joe Biden.
The study, published on Thursday in the journal JAMA, recruited 45 healthy male volunteers aged 18 to 50 years scheduled for mRNA COVID-19 vaccination by Pfizer-BioNTech and Moderna.
Pfizer and AstraZeneca vaccines provide good protection against Delta variant, says a study published in The Lancet journal.
US pharmaceutical Pfizer's vaccine against Covid-19 can effectively neutralise Beta, Gamma variant of the Coronavirus disease, according to a study.
People who have been vaccinated against the coronavirus will require a booster shot to remain protected, according to the US’ top infectious disease expert Dr Anthony Fauci.
President Joe Biden was set to make the announcement Thursday in a speech before the start of the Group of Seven summit.
The Pfizer vaccine, which is manufactured in collaboration with German Biotechnology firm BioNTech, is the only vaccine currently being administered to children in a few countries.
Pfizer says it is expanding testing of its COVID-19 vaccine in children younger than 12. After a first-step study in a small number of young children to test different doses, Pfizer is ready to enroll about 4,500 young volunteers at more than 90 sites in the U.S., Finland, Poland and Spain.
Even a single dose of the mRNA vaccines can reduce the risk of infection by 81 per cent. These estimates included symptomatic and asymptomatic infections.
In a significant step amid the ongoing battle against Covid-19, the Britain's medicines regulator has appoved Pfizer/BioNTech vaccine for for adolescents aged 12 to 15 after a "rigorous review".
For the 'Delta variant' of the coronavirus, there needs to be shorter gap between two doses of anti-Covid vaccines, says a Lancet study, as the contagious virus continues to evolve, infect people.
Pfizer-BioNTech vaccine against coronavirus has been approved by UK regulator for 12 to 15-year-old children, AFP reported on Friday. Last week, the European Medicines Agency recommended that the use of the coronavirus vaccine made by Pfizer and BioNTech be expanded to children ages 12 to 15, a decision that offers younger and less at-risk populations across the continent access to a COVID-19 shot for the first time.
Pfizer-BioNTech vaccine against coronavirus has been approved by UK regulator for 12 to 15-year-old children, AFP reported on Friday.
US will donate 75 per cent of its unused Covid-19 vaccine stockpile to the United Nations-led COVAX global vaccine program which has delivered less than 80 million doses so far.
Globally available Covid 19 vaccines can now be launched in India without the requirement of post approval clinical trials and testing every batch of the vaccine.
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