https://www.sciencedaily.com/release...0515115644.htm
Because it interacts with/enters cells through the ACE2 receptor.
https://www.google.com/amp/s/theconv...explain-136928
https://pubmed.ncbi.nlm.nih.gov/3240...Bt9MLW0f7NWvJQ
Some interesting reading if Chinese are telling the truth.
Lots of studies out there that masks have not been effective. Lots of warnings on boxes of masks that they do not prevent transmission of disease. Was the spread worsened by people getting a false sense of security the they could go out as long as their wear one?
WHO suspends its HCQ trial due to safety concerns.
https://www.cnbc.com/2020/05/25/coro...-concerns.html
“Studies” (plural)? Are you talking about the one where people coughed through a mask a short distance from a Petri dish?
If so, that very study showed reduction in particles with an mask and said further study needed to be done to see if masks affect the distance particles can travel. Low and behold, THAT study has been done and shows that masks DO reduce the distance water droplets carry.
Again, the mask doesn’t stop transmission; it reduces it. It is to be used in combination with social distancing - not by itself.
You should read the study. People were masked up (patients and doctors and family members). Seems to suggest that masks might be effective for controlling spread from asymptomatics. Article made this comment:
Considering all the mentioned factors, we suggest that there are more important reasons for achieving “Zero infection”. As is well-known, person-to-person transmission through respiratory droplets is the main route of COVID-19 transmission [6]. Earlier research revealed that the viral load of respiratory tract samples in an asymptomatic patient was similar to that in the symptomatic patients [11]. However, a single sample is difficult to be representative. In the light of “Zero infection” for this case, we venture to guess that the viral load of respiratory tract samples in the asymptomatic patient might not be high. Moreover, although pathogenic nucleic acids can be detected in respiratory tract samples from asymptomatic carriers, the opportunity of transmission is less than that in symptomatic patient owing to the absence of the way expelling pathogen via cough and sneezing.