Summary of Why is pneumonia so dangerous? - Eve Gaus and Vanessa Ruiz

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Pneumonia is an infection of the alveoli that can be deadly. The most common causes of pneumonia are viruses or bacteria, and the body's immune system releases additional white blood cells in the alveoli to fight the pathogens. As the pathogen is cleared out, the body gradually expels or absorbs fluid and dead cells, and the worst symptoms typically fade out in about a week. However, there are certain risk factors that make some people more susceptible to pneumonia, such as smoking, genetic and autoimmune disorders, and being young or elderly. Prevention of pneumonia includes eating well and getting enough sleep, washing your hands regularly, and getting vaccinated against common pneumonia-causing pathogens.

• 00:00:00 Pneumonia is an infection of the alveoli that can be deadly. The most common causes of pneumonia are viruses or bacteria, and the body's immune system releases additional white blood cells in the alveoli to fight the pathogens. As the pathogen is cleared out, the body gradually expels or absorbs fluid and dead cells, and the worst symptoms typically fade out in about a week. Smoking damages the cilia, making them less able to clear even the normal amount of mucus and secretions, let alone the increased volume associated with pneumonia. Genetic and autoimmune disorders can make someone more susceptible to pathogens that can cause pneumonia. Young children and the elderly also have impaired clearance and weaker immune systems, which can make them more vulnerable to pneumonia. And if someone has viral pneumonia, their risk of bacterial respiratory infection is higher. Prevention of pneumonia includes eating well and getting enough sleep, washing your hands regularly, and getting vaccinated against common pneumonia-causing pathogens.