Influenza, commonly known as the flu, is a contagious viral infection that affects the respiratory system, including the nose, throat, and lungs. It is caused by various strains of the influenza virus, which are categorized into types A, B, C, and D. Influenza is characterized by symptoms such as fever, chills, cough, sore throat, body aches, fatigue, and sometimes gastrointestinal issues. The virus spreads primarily through respiratory droplets from coughs or sneezes, as well as by touching surfaces contaminated with the virus.
Influenza outbreaks can occur seasonally, particularly during the winter months, leading to widespread illness and sometimes severe complications, especially in vulnerable populations such as the elderly, young children, and individuals with certain health conditions. Vaccines are available and recommended annually to reduce the risk of infection and associated complications. Antiviral medications can also be used to treat influenza if administered early in the course of the illness.
Beloved star 大S died at 48 from flu-related complications, highlighting the flu's seriousness. The surge in healthcare visits for flu vaccinations indicates increased public awareness. The flu risks are significant…