Gravitas: Why do we need a third vaccine dose?

Apr 17, 2021, 12:00 AM(IST) Palki Sharma

Have you received both your doses of the Wuhan Virus vaccine? The CEO of Pfizer says you'll likely need a 3rd dose. Will other vaccine-makers follow suit? Watch this report by WION's Palki Sharma to find out.

Read in App