How do you know know if your been potentially exposed to a communicable disease & in addition to needle sticks ,list some other potential portals of entry?

Well, the only real ways you could tell you have been exposed to a communicable disease is to either become ill from said disease; ie, Conjunctivitis or "Pink Eye" becoming prevalent when infected fecal matter is introduced to the eye. The other way is if say you were working with someone who is irregularly coughing or sneezing, which could indicate diseases, that is to say if someone has signs of a disease with sneezing, coughing, diarrhea, or any other way of transmitting it is communicable. If you work in healthcare though, you'd most likely either have a patient you'd work with tested, or yourself be tested for possible exposure; TB Skin Tests actually are positive if you are "exposed" (you don't have to be infected).

Potential ports of entry for an illness are usually the places that are the orifices or "holes" to the outside world. The easiest are of course needle sticks, which could also involve breaking of the skin, in which case you'd have a entryway. Additionally your mouth, nose, ears, eyes, the pores of your skin (most of the time are so small and protected nothing can get in, except drugs), rectum, urethra, and (in females) vaginal opening.

I’ve personally felt invisible all my life, especially when a friend turned out to be fake and didn’t seem to take any type of interest in what i said or any type of input i said. being invisible is a terrifying feeling to experience due to the fact you feel like no one sees you and just sees you (sorry if that doesn’t make sense). it’s like a deep emptiness that no one can fill, just you; you have to fix that emptiness by yourself and you don’t really want , or in some cases want to be invisible. i can see many invisible people when they intentionally stay away from people that can potentially hurt them in any way. also, when a person intentionally breaks off a connection so they aren’t seen by people.hope it