Diseases classified as infectious are brought on by pathogens, which are dangerous substances that enter your body. The most frequent culprits include parasites, bacteria, fungus, and viruses. Usually, contaminated food or water, insect bites, and person-to-person contact are the ways that infectious diseases spread. There are very deadly infectious infections as well as very mild ones. Diseases known as infectious diseases are brought on by pathogens, which are dangerous germs that enter your body from external sources. Infectious diseases are caused by pathogens such as bacteria, fungi, viruses, parasites, and, in rare cases, prions. Infectious diseases can be contracted by contaminated food, water, or soil, as well as from bug bites and other individuals. Bacteria and viruses are examples of pathogenic organisms that enter your body from the outside and cause infectious diseases. Noninfectious diseases are caused by aging, anatomical variations, genetics, and environmental factors rather than by external organisms. Noninfectious diseases cannot be contracted from other people, from a bug bite, or through food.
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