Federal health officials said Wednesday that at least 29 people in the US have developed severe allergic reactions to the Kovid-19 vaccine.
US disease control and prevention officials said the rate is much higher than the seasonal flu vaccine. But severe reactions were rare and resulted in no fatalities, and they encouraged the use of shots.
The CDC stated that 29 cases date to 5 January and are among more than 5.3 million doses.
According to the CDC, the rate of 5.5 cases of anaphylaxis, an allergic reaction to one million Kovid-19 vaccine doses per million, compared with a rate of 1.3 cases per ten million flu flu vaccines.
Still, cases of anaphylaxis are “highly rare”, said Nancy Messonnier, the CDC’s director of national immunization and respiratory diseases, who is leading the agency’s Kovid-19 vaccination efforts.