Answer:
thx so much merry Christmas
People who never develop symptoms or are not yet showing symptoms (pre-symptomatic) might not know that they are infected but can still spread rona to others. Masks also offer protection to the wearer.
Deists believe in God - they believe he is the one who created everything in the very beginning, but then left us to our own devices to decide what we wanted to do with our lives. They do believe God exists, but they think that he doesn't interfere with anything on Earth, be it science, or mechanistic workings of the universe in general.