What is Going on with the Astra-Zeneca Vaccine’s Strange Efficacy Results?
Okay, so, we have preliminary efficacy results on the Astra-Zeneca vaccine…and scientists are baffled.
You have probably seen both 70% and 90% figures circulating, and there’s a reason for that.
The trials tried two different regimens. One was two full doses of the vaccine, the other was a half dose followed by a…