Infection & Disease
Difference between Infection & Disease
A disease occurs when cells or molecules in a person's body stop working properly, causing symptoms of illness. Many things can cause a disease, including altered genes, chemicals, aging, and infections. An infection occurs when another organism - such as a virus, bacterium, or parasite - enters a person's body and begins to reproduce. The invading microbe can directly damage cells, or the immune system can cause disease symptoms, such as fever, as it tries to rid the body of the invader. Some infections do not cause disease because the microbe is quickly killed or it hides out where it cannot be detected.

Content Courtesy : www.niaid.nih.gov
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