The European Union’s (EU) health officials authorised the combination of traditional and mRNA-based COVID-19 vaccines on Tuesday.
Officials Authorise Vaccine Mixing For Booster Dose
On Tuesday, the European Union’s (EU) health officials authorised the combination of traditional and mRNA-based COVID-19 vaccines.
“The combination of viral vector vaccines and mRNA vaccines produces good levels of antibodies against the COVID-19 virus, and a higher T-cell response than using the same vaccine," Stated the European Medicines Agency (EMA) and the European Centre for Disease Prevention and Control (ECDC).
The health agencies re-evaluated their recommendations to national authorities regarding recent clinical findings and real-world data.
Source - The Financial Express
According to the new guidance, using a different shot for the second dose is also called heterologous primary vaccination. A third shot: six to nine months after the initial series, referred to as a heterologous booster and is safe while providing national authorities with flexibility in the occasion of a vaccine shortage.
The EMA has approved coronavirus vaccines from Pfizer-BioNTech, Moderna, AstraZeneca, and Johnson&Johnson.
The Pfizer-BioNTech and Moderna vaccines use a new mRNA approach based on a messenger molecule containing instructions for the virus that induces COVID-19 to create a protein. This prepares the body to fight diseases later on if it gets infected.
In contrast to the traditional vaccines, the Pfizer-BioNTech and Moderna shots are virus-free.
AstraZeneca and Johnson&Johnson’s vaccines are either traditional or viral vector vaccines that prepare the immune system to protect against COVID-19 by employing a modified form of the virus that does not cause illness.
Following vaccination, the human body produces antibodies and immune cells capable of recognising and combating the coronavirus if the individual comes into contact with it.
Source – BERNAMA