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Pathogens

Pathogens

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Pathogens are microorganisms that can cause disease in humans, animals, and plants. They include bacteria, viruses, fungi, and parasites. Pathogens can be spread through direct contact with an infected person or animal, contaminated food or water, or contaminated surfaces.

Pathogens can cause a wide range of illnesses, from mild to severe. Common illnesses caused by pathogens include the common cold, influenza, food poisoning, and sexually transmitted infections. Pathogens can also cause more serious illnesses like tuberculosis, HIV/AIDS, and malaria.

Pathogens can be spread in a variety of ways. They can be spread through direct contact with an infected person or animal, contaminated food or water, contaminated surfaces, or through the air. Pathogens can also be spread through insect bites, such as mosquitoes carrying malaria.

To prevent the spread of pathogens, it is important to practice good hygiene, such as washing your hands regularly, avoiding contact with people who are sick and avoiding contact with animals that may be carrying pathogens. It is also important to cook food thoroughly and to avoid consuming contaminated food or water.

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References

  • Centers for Disease Control and Prevention. (2020). Pathogens and Human Disease. Retrieved from https://www.cdc.gov/pathogens/index.html
  • World Health Organization. (2020). Pathogens. Retrieved from https://www.who.int/news-room/fact-sheets/detail/pathogens