The World Health Organization (WHO) worked with a number of countries to produce viable vaccines to prevent the increase in COVID-19 cases. The healthcare professionals in the US primarily used the Pfizer and Moderna vaccines to inoculate the population. As of June 9, 2022, healthcare professionals administered nearly 590 million doses of the COVID-19 vaccine in the US. By May 2022, more than 65% of the US population had been vaccinated (both shots).
The US started its COVID-19 vaccination drive by inoculating Sandra Lindsay, a critical care nurse at Long Island Jewish Medical Center, New York, in December 2020. She was administered the mRNA vaccine developed by Pfizer in association with the German company BioNTech. Along with those from Pfizer, vaccines from Moderna, AstraZeneca, and Janssen were administered in the US.
The vaccines were developed to prevent and minimize hospitalizations and deaths, but the coronavirus mutates itself frequently, posing a threat in the future. Hence, it became challenging for the US to return to the pre-pandemic levels.
The US population did not face any significant side-effects due to the vaccine. However, people experienced severe allergic reactions, tiredness, headache, and fever. Reports of deaths after the COVID-19 vaccination have been rare in the US.
Three variants of the coronavirus were responsible for the massive number of COVID-19 cases in the US. The second wave of the pandemic in the US was dominated by the Alpha variant, which is 50% more contagious and more deadly than the original COVID-19 virus. After the Alpha variant, the Delta variant fuelled the third wave in the US. The Delta variant was more transmissible than the Alpha variant and claimed numerous lives.
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