/sci/ - Science & Math

I would greatly appreciate some advice. On Sunday, I travelled from country A, a rich country that has introduced measures to prevent the spread of coronavirus, most people wear facemasks in public, there are temperature scanners before entering large stores, to country B, a third world shithole that has barely any preventative measures against coronavirus. While travelling I observed all of the new safety regulations airlines introduced against coronavirus, negative PCR test before travelling, wearing a facemask while travelling, getting tested many times for high temperatures at the country A airports, etc. But in the airport of country B, most of the airport workers were not wearing facemasks, some of them were standing around less than a metre together, and the next day I went to a hospital in country B, while I myself wore a facemask( not the N95 mask, the pic related one), most of the people in the hospital, doctors, patients, receptionists, were not wearing facemasks, and they were also standing around close together, and none of them were tested for high temperatures before entering the hospital. There are thousands of confirmed cases of coronavirus in country B, and that is with the few tests that the health ministry can afford to perform.

My question is, is there a chance that I was infected with coronavirus in the airport or hospital of country B, and should I wait before I want to visit grandparents in country B, even while wearing the pic related face mask? How long should I wait before visiting grandparents? I don't know of any places where I can get a coronavirus PCR test in country B. An important point is that I have heard of hospital workers in country A testing positive and accidentally infecting others with coronavirus, so hospitals in country B must have a worse situation, right?