(CNN) The US Food and Drug Administration authorized Johnson & Johnson's Covid-19 vaccine Saturday. It is the first single dose Covid-19 vaccine available in the US, and is one that "checks nearly all the boxes." With so much positive data, an independent group of advisers voted unanimously on Friday to recommend the emergency use authorization of the J&J vaccine. The Pfizer and Moderna Covid-19 vaccines were tested earlier in the pandemic when there were fewer known variants. "If I had a J&J vaccine available today and a Moderna vaccine available tomorrow, I would be happy to take the J&J today.

Source: CNN February 27, 2021 23:15 UTC