Well the way u CAN get infected with HIV is if u have any contact with the person such as tears saliva blood ect any body fluids. u honestly cant get it by sharing a lipstick or something that's what my health teacher told me last year and for some reason I didnt believe that but it's TRUE I guess? still wouldnt do it tho. so basically u cany really get infected unless u come in contact with the body fluids of the person who has the HIV
This is because you have had it before therefore your body knows how to get rid of it,you have also become more amuned to it.
we are able to get rid of a certain illness sickness or even pathogen faster the second time you get it due to the fact our bodies have had it before which mean they have experienced how to get rid of it
You can set it up by dividing teams by just using numbers for example if there are two teams just alternate between 1 and 2. It really just comes down to being equal only do for one what you will do for all.