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  2. List of infectious diseases - Wikipedia

    en.wikipedia.org/wiki/List_of_infectious_diseases

    This is a list of infectious diseases arranged by name, along with the infectious agents that cause ... a person is considered to have leprosy if they have one of the ...

  3. Infection - Wikipedia

    en.wikipedia.org/wiki/Infection

    An infectious disease, also known as a transmissible disease or communicable disease, is an illness resulting from an infection. Infections can be caused by a wide range of pathogens , most prominently bacteria and viruses . [ 2 ]

  4. List of epidemics and pandemics - Wikipedia

    en.wikipedia.org/wiki/List_of_epidemics_and...

    An epidemic is the rapid spread of disease to a large number of people in a given population within a short period of time; in meningococcal infections, an attack rate in excess of 15 cases per 100,000 people for two consecutive weeks is considered an epidemic. [1]

  5. The 5 Most Common Infectious Diseases - AOL

    www.aol.com/news/2013-12-29-the-5-most-common...

    According to the World Health Organization, as of 2011 there were 12,420 different diseases and health-related ailments. In other words, you should be thanking your immune system and modern ...

  6. Germ theory of disease - Wikipedia

    en.wikipedia.org/wiki/Germ_theory_of_disease

    Their growth and reproduction within their hosts can cause disease. "Germ" refers to not just a bacterium but to any type of microorganism, such as protists or fungi, or other pathogens that can cause disease, such as viruses, prions, or viroids. [1] Diseases caused by pathogens are called infectious diseases. Even when a pathogen is the ...

  7. What to know about infectious diseases during this ... - AOL

    www.aol.com/news/know-infectious-diseases-during...

    Peter Chin-Hong, an infectious disease specialist at UC San Francisco, said people should be on the lookout for the "Big Four": three respiratory viruses currently moving through the U.S ...

  8. Contagious disease - Wikipedia

    en.wikipedia.org/wiki/Contagious_disease

    A contagious disease is an infectious disease that can be spread rapidly in several ways, including direct contact, indirect contact, and Droplet contact. [1] These diseases are caused by organisms such as parasites, Bacteria, Fungi, and viruses. While many types of organisms live on the human body and are usually harmless, these organisms can ...

  9. Epidemic - Wikipedia

    en.wikipedia.org/wiki/Epidemic

    A zoonosis is an infectious disease of humans caused by a pathogen that can jump from a non-human host to a human. [35] Major diseases such as Ebola virus disease and salmonellosis are zoonoses. HIV was a zoonotic disease transmitted to humans in the early part of the 20th century, though it has now evolved into a separate human-only disease. [36]