Opportunistic infections (OIs) are infections that occur more frequently and are more severe in individuals with weakened immune systems, including people with HIV. People are at greatest risk for OIs when their CD4 count falls below 200, but you can get some OIs when your CD4 count is below 500.
The red blood cells bring oxygen to them and the lungs expel the carbon dioxide
I think the answer is Workplace stress
After you realize that you are under stress, the next step is to identify the stressor you are facing. You can do this so you'll be able to recognize how you feel, and maybe even find the cause so you can avoid situations that make you stressed and learn to calm down.
Answer:
Asthma
Explanation:
When I had my first asthma attack I went to the emergency room where they figured out what was wrong and gave me medicine. They then gave me medicine for if it happened again and I still get check ups.