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A zoonosis (/ z oʊ ˈ ɒ n ə s ɪ s, ˌ z oʊ ə ˈ n oʊ s ɪ s / ⓘ; [1] plural zoonoses) or zoonotic disease is an infectious disease of humans caused by a pathogen (an infectious agent, such as a bacterium, virus, parasite, or prion) that can jump from a non-human vertebrate to a human.
The following outline is provided as an overview of and topical guide to concepts related to infectious diseases in humans.. Infection – transmission, entry/invasion after evading/overcoming defense, establishment, and replication of disease-causing microscopic organisms (pathogens) inside a host organism, and the reaction of host tissues to them and to the toxins they produce.
For example, the human body louse transmits the bacterium Rickettsia prowazekii which causes epidemic typhus. Although invertebrate-transmitted diseases pose a particular threat on the continents of Africa, Asia and South America, there is one way of controlling invertebrate-borne diseases, which is by controlling the invertebrate vector.
The disease, which is usually fatal for cattle, infects the central nervous system and leaves the animals with aggressive symptoms and a lack of coordination. Since 1995, 178 human deaths have ...
The Centers for Disease Control and Prevention (CDC) explains that diarrhea, vomiting, nausea, and stomach pain are the most common symptoms of norovirus. However, fever, headache, and body aches ...
Psittacosis—also known as parrot fever, and ornithosis—is a zoonotic infectious disease in humans caused by a bacterium called Chlamydia psittaci and contracted from infected parrots, such as macaws, cockatiels, and budgerigars, and from pigeons, sparrows, ducks, hens, gulls and many other species of birds.
Visceral larva migrans (VLM) is a condition in humans caused by the migratory larvae of certain nematodes, humans being a dead-end host, and was first reported in 1952. [1] Nematodes causing such zoonotic infections are Baylisascaris procyonis , [ 2 ] Toxocara canis , [ 3 ] Toxocara cati , [ 3 ] and Ascaris suum . [ 4 ]
What to know about symptoms and risk after three Americans tested positive for the virus this year. Humans can catch bird flu, but not easily. What experts say about symptoms and risks