Pfizer

Pfizer and Moderna vaccines show weaker results against South African strain

The Pfizer and Moderna vaccines proved to be 92 percent effective with just the first dose

The study suggests that a dose of the Pfizer vaccine may be effective enough to delay, second, increasing the supply of vaccines

Pfizer to start Covid vaccine clinical trial in pregnant women

Pfizer to start Covid vaccine clinical trial in pregnant women

Pfizer to start Covid vaccine clinical trial in pregnant women

Single Pfizer, Modern vaccine dose almost as effective as two

Pfizer and Moderna vaccines work against new variants, say new studies

Pfizer plans to test booster of the COVID-19 vaccine targeting the South African variant

Researchers ask for the second dose of the Pfizer vaccine to be postponed

Pfizer, Modern COVID-19 vaccines protect against obscure South African variant, studies show

Studies show that Pfizer and Moderna vaccines may have reduced protection against the South African variant