Here’s a look at the process:HOW THE STUDIES WORKPfizer and its German partner BioNTech have enrolled nearly 44,000 people in final testing of their vaccine. Late-stage testing of other vaccine candidates is similar, varying slightly in the number of volunteers and timing. HOW TO TELL SHOTS WORKEvery vaccine study is overseen by an independent “data and safety monitoring board,” or DSMB. The more COVID-19 cases occur in the trial, the better idea scientists will have of just how protective the shots really are. Loading... Loading... Loading... Loading... Loading... Loading...Moderna, AstraZeneca and other companies not quite as far along in their final testing all have set slightly different timepoints for when their data monitors will peek at how the shots are working.

Source: thestar November 09, 2020 18:55 UTC