On February 19, the Centers for Disease Control and Prevention (CDC) released a report on adverse reactions during the first month of vaccination (December 14-January 13), when widespread vaccination against the CCP virus began in mid-December of last year. A total of 13.7 million doses of vaccine were administered during this period, and 6,994 adverse reactions were reported. In addition, more adverse reactions were reported for the second dose of vaccine, than for the first.
Of the adverse reactions, 6,354 cases (90.8%) were considered non-serious and 640 cases (9.2%) were considered serious.
The CDC said it uses the Vaccine Adverse Event Reporting System (VAERS) (spontaneous reporting system) and v-safe (active surveillance system) to monitor the safety of vaccines and report adverse events.
The most common adverse reactions were headache (22.4%), fatigue (16.5%), and dizziness (16.5%). The “Vaccine Adverse Event Reporting System” (VAERS) reported 113 deaths, 65% of which occurred in long-term care facilities (78).
The median age of vaccine recipients in reports to the VAERS system was 42 years, while 5,505 (78.7%) of those reporting adverse reactions were female.
However, the CDC said there was no indication of a causal relationship between COVID-19 vaccination and deaths from death certificates, autopsy reports, medical records, and reports received from VAERS and clinical notes obtained from medical providers.
The CDC report also specifically cites particularly rare cases of allergic reactions to the Pfizer vaccine (Pfizer-BioNTech) and Moderna vaccine (Moderna), which occur in 4.5 cases per million doses.
In addition, for people who received two doses of Pfizer vaccine, adverse reactions were reported more frequently to the “active surveillance system” (v-safe) after the second dose.
The CDC noted that the data showed a low rate of adverse reactions after vaccination, and there was no evidence of unexpected serious adverse reactions to the Pfizer and Modena vaccines in terms of safety.
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