I am wondering if you can catch Covid if everyone is wearing a mask? I would be wearing a bandanna or cloth facemask. I also wonder about situations where everyone is wearing a mask but I have to take my mask off for example for a doctor to look at a spot on my face. I understand a mask would block large droplets or at least reduce their spread and the distance they are projected but what about aerosol, would they block aerosol spread if a sick person is coughing through the mask?
In theory if a sick person is wearing a mask it should help limit spread, but how much? I have read of numerous cases of people going to the hospital and catching Covid while in the hospital, how is that possible if everyone is wearing a mask? I know one person in particular who went to the hospital with heart problems and ended up catching Covid there. There have also been numerous cases of staff members of nursing homes spreading Covid to the patient’s. How is that possible if staff members are wearing masks?
Ever since the pandemic started I have not been to the doctor for an in person visit although I would like to go. In the beginning they would actively encourage you not to go into the doctor partly because they did not want you to catch Covid. In the past even before Covid there would often be sick people coughing in the waiting room and I got sick a couple times from things I caught at the doctor’s office. It just seems to me like Covid patients would be at the doctor. I work from home and get grocery delivery so I have not really been exposed to the virus since I try not to go out anywhere in public that is indoors. Where I live everyone has to wear a mask to the doctor.
Also what about if someone is coughing and maybe they removed their masks but they are in a room next to me or across the hall can it transfer to me? I remember at the doctors a few times I’ll be in the little back room and hear people coughing a lot in a room next to me or across the hall.
How much do I have to worry about Covid being transferred through the heating or cooling system from different parts of the building or from offices in the same clinic on different floors? I know I have heard of it being transferred by air conditioning although I don’t know how common that is, what about through heating is that he in the furnace hot enough to kill the virus? I also wonder about staff members who eat lunch in the office in the back room, obviously without a mask who may be sick. Just last week I was on the phone the doctor’s office and the person on the phone I was speaking with was coughing which makes me concerned. I have not been vaccinated.