How does the age of the host affect the immune response to influenza infection?

Signs & Symptoms of the Flu · Fever or feeling feverish/chills · Cough · Sore throat · Sneezing · Runny or stuffy nose · Muscle or body aches · Headache ... Influenza (flu) is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and lungs. It can cause mild to severe illness ... What is the flu? · How does the flu spread? · Does your child need a flu vaccine every year? · Are some children more likely to have serious health problems caused ... What Is Avian Influenza? Avian influenza, or “bird flu,” is a respiratory disease of birds caused by influenza A viruses. Wild birds, such as ducks, gulls, ... Avian influenza, commonly known as “bird flu,” is a highly contagious disease caused by certain influenza A viruses. These viruses mainly infect and spread ... Avian influenza (AI) is caused by influenza type A viruses that historically have spread between wild birds (waterfowl and shorebirds) with occasional ... Jun 22, 2024 ... Summary. Some sexually transmitted infections can cause flu-like symptoms such as fever, sore throat, and swollen lymph nodes. These include ... Symptoms of the common cold caused by the rhinovirus include sore throat, runny nose, coughing, sneezing, watery eyes, headaches, and body aches. Bacteria. Bacterial pneumonia can occur on its own or develop after you've had a virus like the cold, flu, COVID-19 or RSV. The flu is caused by a virus. Viruses are generally passed from person to person through the air when an infected person sneezes or coughs. But the virus can ...