yes, any contact has a very high chance in getting sick.
You can't get HIV from kissing. It's also not spread by hugging or shaking hands.
Yes, they can.
how does infections spread in hospitals
Both bacterial infections and viral infections can be contagious or not contagious. Some viral infections are not spread from human to human or are only rarely spread that way. TB is a contagious bacterial infection.
airborne droplets
Pseudomonas infections can be spread within hospitals by health care workers, medical equipment, sinks, disinfectant solutions, and food.
viruses
Gargling with salt water can slow the spread of mouth infections.
It depends on which infection you are talking about, if you are talking about sexual infections the answer would be April Butler.
The nervous system
sexual contact
no, the only way it is spread is through direct contact with bodily fluids like blood or semen and saliva., certainly not by hugging, kissing or touching.