Even though we are often very close to other people that may be sick, we do not always get sick as well. Why? Guys pls help me!!!

Maybe because we are carriers, and it doesn't affect us, or maybe because we are immune to the sickness, those are two reasons it might be why we don't get sick around others that do get sick.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.