Moderna

Why One Dose of a Two-Dose Vaccine Isn’t Enough

Why One Dose of a Two-Dose Vaccine Isn’t Enough

When you get your first dose of a two-dose COVID-19 vaccine, evidence indicates your protection begins about two weeks later — before you get the second dose. That’s good news, but it doesn’t mean you can skip the second dose.

What’s the Deal With the AstraZeneca Vaccine?

What’s the Deal With the AstraZeneca Vaccine?

In addition to the Pfizer, Moderna, and Johnson & Johnson vaccines currently authorised for use in the U.S., several other vaccines are in use in other countries. One of those, the Oxford/AstraZeneca vaccine, isn’t authorised in the U.S. yet and has been surrounded by controversy. Here’s a rundown of what…