If a person gets infected and then recovers, does he become immune to it or he may catch it again?
Some doctors are telling pores of a mask is too spacious for the corona-virus to enter. Mask cannot prevent the infection. How much is it true?
If a person gets infected and then recovers, does he become immune to it or he may catch it again?
Some doctors are telling pores of a mask is too spacious for the corona-virus to enter. Mask cannot prevent the infection. How much is it true?