What body systems are most affected by influenza?

What body systems does influenza affect?

The flu affects your whole body—including your nose, throat and lungs—and can lead to serious complications in those with chronic illness.

What body system is most affected by viruses that cause colds or the flu?

A cold is an infection of the upper respiratory system. This just means it can affect the nose, throat, and sinuses. A cold virus gets inside your body and makes you sick. The rhinovirus (say: rye-no-VYE-rus) is the most common cold virus, but more than 200 viruses can cause colds.

Does influenza stay in your body forever?

Unfortunately, flu viruses mutate (change) each year. So getting sick once doesn’t protect you from the flu forever. Some years, the change in the flu virus is slight. So if you do get the flu, it’s mild.

What kills the flu virus in the body?

Fever—Fevers fight influenza viruses.

Because viruses are sensitive to temperature changes and cannot survive above normal body heat, your body uses fever to help destroy them.

How long is the flu contagious?

Period of Contagiousness

People with flu are most contagious in the first 3-4 days after their illness begins. Some otherwise healthy adults may be able to infect others beginning 1 day before symptoms develop and up to 5 to 7 days after becoming sick.

IT IS IMPORTANT:  Can someone be immune to pinworms?

What age group gets the flu the most?

The same CID study found that children are most likely to get sick from flu and that people 65 and older are least likely to get sick from influenza. Median incidence values (or attack rate) by age group were 9.3% for children 0-17 years, 8.8% for adults 18-64 years, and 3.9% for adults 65 years and older.

What are symptoms of the flu 2020?

People who are sick with flu often feel some or all of these symptoms:

  • Fever* or feeling feverish/chills.
  • Cough.
  • Sore throat.
  • Runny or stuffy nose.
  • Muscle or body aches.
  • Headaches.
  • Fatigue (tiredness)
  • Some people may have vomiting and diarrhea, though this is more common in children than adults.

Can flu damage lungs?

The flu virus, or influenza, is often considered a respiratory illness. That means it infects your throat, your nose, and sinuses, and can also infect your lungs. Some people are more vulnerable to complications that can affect their lungs, making the flu virus very dangerous.

How does the flu get into your body?

The flu virus typically enters your body through your nose via droplets from an infected person who sneezes or coughs near you. If a sick person is standing within six feet of you, they’re close enough to spread germs.