Flu is a viral infection.

«Flu»

Plan

• What is a flu?
• Epidemiology
• Pathogenesis
• Symptoms
• Complications
• Diagnostics
• Treatment
• Prevention

What is a flu?

• Flu is an acute respiratory viral infection caused by viruses of group A, B or C, occurring with fever, damage to the upper and lower respiratory tract. The flu often causes complications to a fatal outcome and causes epidemics.

Epidemiology

• About 900 million people get sick with the flu every year, of which 3-5 million cases develop a severe form. Up to 650 thousand people die from the flu a year. The flu occurs all over the world, and anyone of any age can get sick with it. The source of infection is a sick person

Pathogenesis

• The first is the penetration of viruses into the respiratory tract. Infection is most often carried out by airborne droplets during sneezing, coughing, and breathing.
• The second is a decrease in immunity

Symptoms

• Headache, weakness, chills, sweating, high temperature, eye pain, lacrimation, joint, muscle pain, sore throat, nasal congestion, dry cough, hoarseness of voice, decreased appetite, chest pain

Complications

• Pneumonia
• respiratory failure;
• pulmonary edema;
• encephalitis, meningitis;
• acute heart and kidney failure;
• septic shock.

Diagnostics

• clinical and biochemical blood analysis
• general urine analysis
• immunoenzyme analysis
• P.C.R. test

Treatment

• bed rest
• heavy drinking
• full nutrition
• etiotropic treatment
• symptomatic therapy

Prevention