COVID-19 vaccine safety concern addressed by CDC

Public health experts have addressed possible risks for COVID-19 vaccination recipients.


On January 13, the findings of an inquiry into potential safety issues for COVID-19 vaccination recipients 65 years of age and older were revealed by the CDC.

According to the CDC, these investigations are initiated when a safety signal is picked up by a surveillance system and fulfills the statistical requirements to justify additional evaluation to ascertain whether it is caused by vaccination.

An elevated risk of ischemic stroke in the first 21 days after immunization compared to the next 21 days was of particular concern in this case (days 22-44 after vaccination).

When a blood artery to the brain is stopped, ischemic stroke occurs. Approximately 87% of stroke cases are of this kind.

The Centers for Medicare and Medicaid Services database was used in research on the Pfizer and Moderna vaccines, according to the CDC, which stated there was no increased risk of ischemic stroke.

Preliminary Analysis

A preliminary analysis of statistics from the Veterans Affairs database also revealed no elevated risk.

Updated (bivalent) vaccinations have not been associated with an increased risk for ischemic stroke, according to research using the Vaccine Adverse Event Reporting System (VAERS), Pfizer-worldwide BioNTech’s safety database, and reports from other countries.

Two mRNA components make up the bivalent vaccines, one of which is intended to particularly target the omicron form.

The CDC stated that there is no need to alter current immunization practices despite having made the investigation and the safety warning before it public.

Other Reports, Bivalent Vaccines

A component of the original viral strain, which offers wide protection against COVID-19, is included in the bivalent COVID-19 vaccinations, together with a component of the omicron variant, which offers enhanced protection against COVID-19 produced by the omicron variant. 

Due to the presence of these two components, these vaccinations are known as bivalent COVID-19 vaccines.

 The term “updated” COVID-19 booster dosage may also be used to describe a bivalent COVID-19 vaccination.

The COVID-19 vaccination can aid in preventing mortality, serious sickness, and hospitalization due to the COVID-19 virus. Everyone can lose part of that defense as the infection evolves and your immunity ages naturally.

Moderna and Pfizer-bivalent BioNTech’s COVID-19 vaccine formulations are approved by the FDA for use as a single booster dose.

Children aged 6 months to 5 years may get a single booster dose of the bivalent Moderna COVID-19 Vaccine at least two months after finishing a main series with the monovalent Moderna COVID-19 Vaccine. 

It is also allowed to be administered as a single booster dose to those aged 6 and older at least two months following the completion of either the main immunization with any authorized or approved monovalent COVID-19 vaccine or the receipt of the most recent booster dose.

In people aged 5 and older, the Pfizer-BioNTech COVID-19 Vaccine, Bivalent is approved for use as a single booster dose at least two months after completing either the primary vaccination with any authorized or approved COVID-19 vaccine or receipt of the most recent booster dose with any authorized or approved monovalent COVID-19 vaccine.