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Is the COVID-19 booster the same as the original vaccine?

Is the COVID-19 booster the same as the original vaccine?

Yes, the COVID-19 booster uses the same recipe as the original shot, despite the emergence of the more contagious delta variant. The vaccine is still working well and has not been tuned to match the delta well.

Vaccines work by training the body to recognize and fight spike proteins that cover the coronavirus and help it invade the body’s cells. Fortunately, the delta mutation did not make enough difference to escape detection.

Dr. Paul Gepfeld, director of the University of Alabama’s Birmingham Alabama Vaccine Research Clinic, said the enhancements in protection that could be obtained from boosters tailored to better match Delta and other variants were small. Stated.

Manufacturing doses with new formulations would also have delayed booster deployment.

Modana When Pfizer We are researching boosters that have been tuned in case Delta or other variants are needed. Health officials need to decide if and when a replacement of vaccine prescriptions is worth it.

“What we don’t know is whether the Delta vaccine is actually effective in preventing infections and asymptomatic infections when compared to regular vaccines,” Goepfert said. ..

The United States has approved boosters of the Pfizer, Modana, Johnson & Johnson vaccines for certain people, and some other countries are also using boosters of these injections or other COVID-19 vaccines. increase.

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