respiratory viruses

Respiratory viruses are germs that infect the respiratory system, including the nose, throat, and lungs. They spread mainly through droplets when an infected person coughs, sneezes, or talks, and can also spread by touching contaminated surfaces. Common examples include influenza (the flu), cold viruses, and COVID-19. Symptoms can range from mild congestion and sore throat to severe illness like pneumonia. Most infections are self-limiting, but vulnerable populations may face serious complications. Preventive measures include good hygiene, vaccination, wearing masks, and avoiding close contact with infected individuals.