The American pharmaceutical company Pfizer, nine days later, announced that the effectiveness of its vaccine against the coronavirus increased by five percent immediately and reached the mark of 95%.
It is reported press office company on its website on Wednesday, November 18.
Pfizer reports that a vaccine called BNT162b2, developed together with Germany's BioNTech, showed such effectiveness 28 days after trial participants received the first dose of the drug. In the course of research, coronavirus infection was detected in 170 volunteers, 162 of whom received a placebo.
According to the company, the vaccine showed effectiveness regardless of the age, race and ethnicity of the subjects, and among volunteers over 65 years of age, the effectiveness of BNT162b2 exceeded 94%.
