Flu is also called “Influenza”. Fly is a viral infection that mainly affects the respiratory system i.e., nose, throat and lungs. Flu can be mild to severe; in some people it resolves on its own but some definitely need attention or treatment.
Flu is different from common cold or cold because of their causes, symptoms are almost same though but flu is more severe than cold or common cold.
CAUSE:
Influenza caused by influenza virus is either A or B virus. It can spread if an infected person transfers droplets to another person by coughing, sneezing or talking.
COMPLICATIONS:
Some factors that might increase risk of developing Flu-
Weakened immunity system
Chronic lung disease (as flu infect nose, throat and lungs)
Diabetes
Morbid obesity
Age also plays important role because influenza mainly target children 6 month to 5 years old and adults 65 or more.
Severe anemia.
SYMPTOMS:
The common Flu symptoms are-
Cough
Sore throat
Fever
Runny nose
Headache
Fatigue
PREVENTION/TREATMENT:
Get vaccinated with flu vaccine
Practice good hygiene
Wash or sanitize hands frequently or before every meal
Keep maintain distance from infected people
In severe case consult doctor and take proper medication.
References:
https://www.lung.org/lung-health-diseases/lung-disease-lookup/influenza/symptoms-causes-and-risk
https://www.cdc.gov/flu/about/viruses/types.htm
https://www.cdc.gov/flu/symptoms/symptoms.htm
https://my.clevelandclinic.org/health/diseases/4335-influenza-flu#prevention