I NEED THESE ANSWERED PLEASE What causes the flu?
What are common symptoms of the flu and what are complications that arise from the disease?
Do you think people can misdiagnose themselves with the flu? Explain your reasoning.
How is flu season defined? What are the criteria for this definition?
How does the flu affect businesses and governments? Could it affect residents’ access to certain resources?

Explanation:

1) The flu is caused by influenza viruses that infect the and people assume it's the flu because nose, throat, and lungs. These viruses spread when people with flu cough, sneeze or talk, sending droplets with the virus into the air and potentially into the mouths or noses of people who are nearby.

2)

3) yes because they don't always know signals can have symptoms as others and they assume it as flu because it is a known sickness

4)The flu, also known as the influenza virus, is diagnosed year-round in the United States. Fall and winter seasons are when the greatest impact is usually seen and, therefore, is considered the "flu season." Influenza activity has a period of greatest activity between December and February, but the activity can last until May.

Every year at the beginning of the fall season, people are encouraged to get a flu shot.

CDC data on influenza vaccine:

• 116 million doses of influenza vaccines have been distributed.

CDC

(Centers for Disease Control and Prevention) recommends that all persons 6 months and older receive the influenza vaccine at the end of October.

• Influenza vaccination offers important benefits

5) in the attached file

answer; polycythemia is the correct answer;