The FDA granted the Pfizer-BioNTech COVID-19 vaccine an emergency use authorization (EUA) in the United States on December 11, 2020. Within a week, the agency had also awarded an EUA to a Moderna vaccine. In February 2021, the European Union approved Johnson & Johnson's single-shot vaccine.
On December 8, 2020, the British government approved and began administering the Pfizer vaccine. Vaccines developed in China and Russia are currently available in a variety of nations.
The Pfizer and Moderna vaccinations both require two doses, spaced a few weeks apart, whereas the J & J vaccine just requires one injection. Initially, health-care personnel and the elderly were given precedence in acquiring the vaccines, but by May, anyone over the age of 12 had access to them.
These vaccinations were produced at a breakneck pace, with human testing set to begin in March 2020. According to the FDA, no corners were made in order to gain approval, and the vaccines are safe. According to the CDC, COVID-19 vaccination is safe for pregnant women, and there is no evidence that antibodies produced by the vaccine create problems during pregnancy.Other vaccinations are still undergoing clinical studies.
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