Pfizer has reduced the effectiveness of its COVID-19 vaccine. If earlier this indicator was 95%, now it is 91.3%.
This is reported by CNBC.
At the same time, the study proves that protection against coronavirus after the second dose lasts at least six months.
The vaccine also showed 100% efficacy in preventing the disease among participants in a trial in South Africa dominated by the new B1351 strain.
вЂњThis data confirms the efficacy and safety of our vaccine and allows us to apply for an FDA biological activity license in the United States,вЂќ said Albert Burla, CEO of Pfizer.
As previously reported, at the plant in the United States, employees spoiled about 15 million doses of the Johnson & Johnson vaccine. This was due to the fact that the workers mixed the ingredients incorrectly.
We also wrote that the Safety Committee of the European Medicines Agency (EMA) has not identified a link between the AstraZeneca coronavirus vaccine and the occurrence of blood clots, but does not rule it out.