By taking the two-dose Pfizer and Moderna vaccine were around 95% effective from a serious illness while 72% effective in single-dose of Johnson & Johnson vaccine is difficult to compare directly. So both the vaccine are working very well at protecting us from the virus. Even you may get infected from a virus with normal or no symptoms or you may be very sick.
Experts suggest that the shots help reduce the severity of the illness if you end up getting serious in spite of vaccination - The main purpose is to get vaccinated. A vaccinated person who is infected with covid may spread to other people.
Previously, health officials believed that a Vaccinated person helps to break the chain of the infections and was unlikely to spread the virus. But now the delta variant is dominating throughout the world and compare to all other it is more contagious.
The U.S. Centers for Disease Control and Prevention said it could carry enough to spread the virus through noses and throats to others. Recently agency was a statement that vaccinated people should go back to wearing masks. Still, experts suggest that vaccines provide strong protection against serious illness.
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