NEET BIOLOGY

Detailed explanation-1: -Influenza (in-floo-en-zuh), or flu, is a contagious viral infection that can cause mild to severe symptoms and life-threatening complications, including death, even in healthy children and adults.

Detailed explanation-2: -Flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs.

Detailed explanation-3: -The flu, measles, HIV, strep throat, COVID-19 and salmonella are all examples of infectious diseases. Cancer, diabetes, congestive heart failure and Alzheimer’s disease are all examples of noninfectious diseases.

Detailed explanation-4: -It is a highly contagious respiratory illness that infects the nose, throat and sometimes the lungs. The illness ranges from mild to severe, and at times, can lead to death. Most experts believe that flu viruses spread mainly by tiny droplets made when people with flu cough, sneeze or talk.