If you want to offer some bets according to the covid situation, then you have to be fast because in some months the covid will be over because of the vaccination program 
AFAIK, there some betting events son Futuur's site about Covid-19.... as far as I can remember it is about Covid-19 vacine. If you wawnna bet, just visit their site and you'll immediately findd it. You can find lots on here: https://futuur.com/q/category/2181/covid-19-coronavirus
Example of given market:
How many deaths will be caused by Covid-19 in Brazil by the end of 2021?
Will Covid-19 infection kill more people globally than Influenza in 2021?