Trace of a novel coronavirus pandemic that has spread from China
The effectiveness of the coronavirus vaccine companies & nbsp; Pfizer-BioNTech six months after introducing second dose of drug to patients decreased from 96% to 84%, Interfax reports
Over 44,000 people in the study from the United States and Europe. It should be noted that 81 people fell ill with the coronavirus, including 873 of those who received a placebo.
According to the results of the study, the maximum effectiveness is & mdash; 96.2% & mdash; the vaccine reaches two months after taking the second dose.
Recall that recently, the pharmaceutical regulator of the FDA in the United States announced the extension of the accompanying documentation for the Pfizer and Moderna vaccines. Warnings for myocarditis or pericarditis have been added to the documents.
The European Medicines Agency (EMA) Safety Committee has updated the recommendations on side effects of Pfizer/BioNTech and Moderna vaccines.
The regulator reports in its report that these drugs in extremely rare cases can lead to myocarditis and pericarditis. In this regard, it is recommended to add these diseases to the list of side effects.