Pfizer vaccine ‘protects against Covid-19 variants’

The pharmaceutical giant said its findings show the vaccine is 100% effective in preventing Covid-19 cases in South Africa – where the South African variant is now common.

Vials of Pfizer-BioNTech coronavirus vaccine (Nick Potts/PA)

The Pfizer Covid-19 vaccine appears to offer 100% protection against the South African variant and most likely protects against the Brazilian variant, according to two new studies.

Research published by Pfizer/BioNTech on Thursday offers the first in-human evidence of how the vaccine protects against the South African variant that has been worrying scientists.