The B.1.617 variant that has devastated India was first detected in the US between late February and late March.
Efficacy against Covid-linked disease averaged about 85% after a full course, say University of Florida researchers.
India has not given any manufacturer of a Covid-19 vaccine indemnity against the costs of compensation for any severe side effects, a condition Pfizer has obtained in many countries, including UK, UK
The European Union (EU) has signed a third contract with pharmaceutical companies BioNTech and Pfizer, securing an additional 1.8 billion Covid-19 vaccine doses between the end of 2021 and 2023
Unopened, thawed vials of the vaccine can be stored in a refrigerator at 2 to 8 degrees Celsius for up to a month, up from a previous maximum limit of five days
The EU executive arm finalised a third vaccine contract with Pfizer and BioNTech through 2023 for an additional 1.8 billion doses of their COVID-19 shot to share between the bloc's countries
Messenger RNA shots developed by Moderna or Pfizer and BioNTech are better at stopping people from becoming contagious, shows evidence.
The Pfizer/BioNTech and Moderna coronavirus vaccines appear to protect against Covid variants B.1.617 and B.1.618 first identified in India, researchers have reported in a new pre-print paper
US FDA has expanded emergency use authorization of the Pfizer-BioNTech Covid-19 vaccine to include adolescents 12 to 15 years of age
Extending 2nd dose interval increases the peak antibody response 3.5-fold
An advisory panel of the Centres for Disease Control and Prevention on Wednesday (local time) recommended the use of Pfizer-BioNTech Covid-19 vaccine for children aged between 12 and 15
The study found no cases of Covid-19 among fully vaccinated adolescents compared to 18 among kids given dummy shots
The US Food and Drug Administration (FDA)authorised the emergency use of Pfizer-BioNTech Covid-19 vaccine in adolescents aged 12-15 for the prevention of Covid-19
Sri Lanka is the first country in South Asia to approve the Pfizer vaccine
Pfizer Chief Executive Albert Bourla said in a statement that the companies are aiming to win full regulatory approval in the coming months
Previous research suggested that B.1.1.7 is more infectious and more deadly than other variants, but that vaccines still worked well against it
People who received the Pfizer Covid-19 vaccine at a US hospital had dramatically lower symptomatic and asymptomatic infections compared with their unvaccinated peers, according to a study
If approved, the vaccine will be the first fully approved Covid-19 shot and could help ease vaccine hesitancy due to longer-term data required for an FDA approval
Pfizer will likely seek the US Food and Drug Administration's emergency authorisation to administer its coronavirus vaccine among children between the ages of 2 and 11 in September, media reports
This is reflecting new contracts with governments around the world trying to halt the pandemic through rapid vaccination.