Opportunistic infections are infections that take advantage of the weakness of the immune system of certain organisms, and end up settling inside. They do not usually reach people with normal immunity, but it does affect people with autoimmune diseases such as HIV / AIDS.
Answer: c) OIs are the common cause of death of people with HIV / AIDS.
It looks like it might be a scar from a cut or something. I don't think it is a stretch mark though.
The first way to prevent bacteria - and you should have heard this a bunch growing up, to wash your hands every time you use the bathroom and before you eat. Washing your hands prevents bacteria and also prevents a person getting sick easily.
The second way to prevent bacteria is to wash items that are touched more commonly around your house frequently. These things include door handles, the keyboard on your computer (even the mouse), remote controllers...just items that are touched a lot around the house.
The third way to prevent bacteria is to keep an eye on new about food or water that is recalled. A bunch of food (and water) nowadays are getting recalled due to ingredients that are not necessary, or contaminated.
Answer:
Sign language doesn't involve speaking.
Explanation:
However, learning it make take some time.
