NEET BIOLOGY

Detailed explanation-1: -Flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs. It can cause mild to severe illness, and at times can lead to death. The best way to prevent flu is by getting a flu vaccine each year.

Detailed explanation-2: -Influenza is caused by infection of the respiratory tract with influenza viruses, RNA viruses of the Orthomyxovirus genus.

Detailed explanation-3: -Influenza is a viral infection that affects mainly the nose, throat, bronchi and, occasionally, lungs. Infection usually lasts for about a week and is characterized by sudden onset of high fever, aching muscles, headache, and severe malaise, non-productive cough, sore throat, and rhinitis.

Detailed explanation-4: -Influenza is an infectious viral illness. The name “influenza” originated in 15th century Italy, from an epidemic attributed to “influence of the stars.” The first documented pandemic, or worldwide epidemic, that clearly fits the description of influenza was in 1580.

Detailed explanation-5: -Flu is caused by a virus that is spread from person to person. It causes seasonal epidemics each year.