The study findings reveal that individuals with previous SARS-CoV-2 infection do not get additional benefits from vaccination, indicating that COVID-19 vaccines should be prioritized to individuals without prior infection.…, No point vaccinating those who’ve had COVID-19: Cleveland Clinic study suggests, Dr. Sanchari Sinha Dutta, 2021

In the United States, the US Food and Drug Administration (FDA) has provided emergency use authorization for two mRNA-based COVID-19 vaccines developed by Pfizer/BioNTech and Moderna, which have shown high efficacy against SARS-CoV-2 infection and COVID-19 disease in clinical trials. However, the ability to vaccinate a large part of the global population is limited by vaccine supply.

The scarcity of vaccines, coupled with the knowledge that vaccines do not provide additional protection to those who have already been infected, is the strongest argument for restricting vaccine administration to those who have not had the infection.



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