America Approves Third COVID-19 Vaccine Dose, But is it Necessary?

While only 2.2 percent of people in Africa have received two doses of the anti-COVID-19 vaccine, 50% of the people in the US are fully vaccinated.

While only 2.2 percent of people in Africa have received two doses of the anti-COVID-19 vaccine, 50% of the people in the US are fully vaccinated. The country has now also approved the third dose for specific cases. Newsclick editor-in-chief Prabir Purkyastha explains.