gave | Friday, February 12, 2021 – 12:06 | Last Updated: 12 02 2021 – 12:06
Oxford University virology department in the UK found that people with 2 doses of Pfizer / BioNTech coronavirus vaccine had strong immunity to the original coronavirus, including the Kent and South African mutations of the virus. Based on the scientific research results, scientists announced that the vaccine continues to provide strong protection against mutated coronavirus.
KEY ROLE ‘T-CELL’
The study found that the human antibodies were moderately effective against the original virus after the first dose of vaccine, less effective against the Kent variant, and unable to inactivate the South African variant. On the other hand, strong ‘T cell responses’ against all known variants were detected in the same individuals after the first vaccine. Scientists found that with the second dose of vaccine, people provided much stronger protection against mutations and the original virus.
SECOND-DOSE FIELDS PROVIDE STRONG PROTECTION AGAINST VIRUSES AND MUTATIONS
“It may not necessarily protect you against infection (the first dose), but this first dose is very likely to make it much easier for your immune system to respond well next time,” Prof William James said of the results of their scientific study. “We think this is why the second dose produces such a strong antibody response, because the T cells are already there and ready to react.”
THE IMPORTANCE OF THE SECOND DOSE
Professor James says, “It makes no promise that you won’t get sick from the new mutations, but it does show that there is something that will work and your immune system can respond to them. In more than 90 percent of cases, the antibodies people produce after the second dose have risen to the level we hope to neutralize the virus and protect them from infection. “We are pretty confident that they will be protected against South Africa and Kent mutation as well as the (original) species,” he said.