There was always a cautious optimism when it came to these vaccines. They proved their worth in the early trial phases, but there was no guarantee that they would complete Phase 3 successfully. There was always a risk that any or all of them would fail. Now that the three experimental drugs have shown they can prevent severe COVID 19 illness with an efficacy of up to 95%, Bill Gates has one of the best coronavirus vaccine predictions so far. He said in an interview that “almost all”...

Read the full article at Boy Genius Report