Once someone has recovered from covid, are they now incapable of transmitting the virus to others? Is it safe for others if they remain maskless for the duration of the pandemic?

Many govts have bought future vaccine doses from corporations before they developed them – if they bought from Pfizer, maybe they gambled well. Were the other vaporware doses a waste of tax money?

Why it is so hard for people to believe in Covid-19? Even the literate. Is failing to convince people a failure of the government or the doctors behind the science?

Please tell grocery store workers/teachers/delivery workers/librarians/all workers required to go to work to keep their jobs how they can best protect themselves from people who won't mask or distance indoors?

Should people without insurance or high copayments/deductibles that they can't afford, in case they feel ill or think they have symptoms seek medical help? And in which instances (high fewer, cough...). What they should do with the bills they can't afford?

I've been hearing a lot about professional athletes not performing well after they've tested positive and sat out. What are, if any, lingering effects of covid that might help explain what these players are going through?

Is flying really so safe after all? What’s the max a group gathering should be?

What’s the risk of 2 people sharing Thanksgiving? More then 4? 10 or more? You get the idea...

Without the time to study the longterm effects of the vaccine, how are scientists assessing the body's reaction to it at 5-10 years out? The widely used vaccines that we employ currently are known to be safe bc they're been studied longitudinally - we don't have that luxury now.