A virus called poliovirus causes polio in humans. Poliovirus is transmitted through feces and can be passed on by contact with an infected person or contaminated food or water. The polio vaccine is the most effective way to prevent the illness.
Know MoreMost people that are infected with poliovirus have no symptoms and are unaware of it. Some people develop nonparalytic polio, which causes mild flu-like symptoms. Rarely, paralytic polio results from infection with poliovirus, causing muscle aches and weakness and loss of reflexes. Another effect of poliovirus, known as post-polio syndrome, causes disabling symptoms many years after a person is infected. Common symptoms of post-polio syndrome include excessive fatigue, progressive muscle weakness and problems with memory, breathing or swallowing.
Learn more about Conditions & DiseasesA pathogenic organism is a bacterium, fungus, prion or virus that survives by feeding off of a host. A pathogenic organism typically causes disease in the host organism.
Full Answer >Mononucleosis is caused by a communicable virus that isn't as contagious as the common cold, according to the American Academy of Family Physicians. Commonly known as the kissing disease, mono is transmitted through the saliva of an infected person, and the virus is also found in an infected person's mucus.
Full Answer >Acute bronchitis is most often caused by a virus and is contagious through both direct and indirect contact, according to Mayo Clinic. To minimize the risk of bronchitis infection, it is important to wash hands thoroughly and regularly, especially when in contact with sick people. Avoiding touching the eyes, nose and mouth can also prevent the spread of the virus causing the bronchitis infection.
Full Answer >Polio is a virus that formerly ravaged populations the world over in widespread epidemics, but has in modern times, been nearly eradicated. The virus is transmitted via the fecal-oral route and primarily affects newborns and young children.
Full Answer >