I have read that Brazil has been experiencing a mysterious lessening of Covid-19 and nobody seems to know why. I just checked postings for the last week. Seems that my initial thought was wrong and Brazil is in serious trouble. They have, however, opened up to anybody who wants to test vaccines. As I understand it there are currently three vaccines being tested, right now, with more to follow.

that Being the case signs should start in a week or two?

Here are a couple of recent posts:
https://timesofindia.indiatimes.com...ed-to-know-today/photostory/77872588.cms

https://www.prnewswire.com/news-rel...atment-of-severe-patients-301123021.html