Tag: Dose

India gave 1.2 million free doses of the AstraZeneca coronavirus vaccine to Bangladesh on Saturday, its foreign minister said, as Dhaka urged New Delhi to maintain a regular supply of shots to battle the pandemic.

The second dose of Pfizer Inc’s COVID-19 vaccine could be delayed in order to cover all priority groups as the first one is highly protective, two Canada-based researchers said in a letter published in the New England Journal of Medicine.