COVID-19 vaccines have been effective at keeping people from getting severely ill and dying from the virus, but they’ve required different boosters to try to keep on top of all of the coronavirus ...

In the absence of effective treatments for COVID-19, many countries have approved the therapeutic use of blood plasma from recovering patients because it contains antibodies against the coronavirus.

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...