The drug maker Pfizer said that its coronavirus vaccine was 95 percent effective and had no serious side effects — the first set of complete results from a late-stage vaccine trial as Covid-19 cases.
The data showed that the vaccine prevented mild and severe forms of Covid-19, the company said. And it was 94 percent effective in older adults, who are more vulnerable to developing severe Covid-19 and who do not respond strongly to some types of vaccines.
There have been no serious side effects among the 41,135 adults who received two doses, the companies said in a joint statement. The most common reactions were that 3.7 percent of participants experienced fatigue and 2 percent had a headache, it said.
Pfizer and BioNTech said they will now submit a request "within days" for emergency use authorization with the Food and Drug Administration, while sharing their data with regulators in Europe and elsewhere.
The figure of 95 percent comes from Pfizer and BioNTech analyzing 170
confirmed cases among the 40,000-plus people involved in the trial. Just
eight people who were given the vaccine got sick, compared with 162 who
were given a placebo.
No comments:
Post a Comment