The waterborne disease that is caused by the protozoan present in both humans and wild animals' intestinal tract, that also occurs to the campers who are staying in the wilderness areas and were able to swallow pathogenic cysts when they are able to drink the water that is not even unfiltered, the water they usually drink are from the mountain and stream and the one responsible for it is the giardiasis.
Everything basically has bacteria so if you touch someone that’s sick and they sneezed on their hand if you handshake that person or touch their hand the germs are on your hand now of course you can wash ur hands but there’s still bacteria on your hand it’s confirmed that everyone atleast touches their body 16 times and hour so that’s how it spreads to our body
I think it is B because the other ones makes sense
Yeah i’m is how i you can relate to that how you do with your hair 55- days and you have a