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Different viruses can infect all the organs and tissues of the body and the outcomes range from mild or no symptoms, to life-threatening diseases. [5] Humans cannot be infected by plant or insect viruses, but they are susceptible to infections with viruses from other vertebrates. These are called viral zoonoses or zoonotic infections. [6]
Zoonotic diseases generally refer to diseases of animal origin in which direct or vector mediated animal-to-human transmission is the usual source of human infection. Animal populations are the principal reservoir of the pathogen and horizontal infection in humans is rare.
The human virome is the total collection of viruses in and on the human body. [1] [2] [3] Viruses in the human body may infect both human cells and other microbes such as bacteria (as with bacteriophages). [4] Some viruses cause disease, while others may be asymptomatic.
Of those, 79% involved a virus going from one animal species to another animal species. ... humans give more viruses - about twice as many - to animals than they give to us. Of those, 79% involved ...
Illnesses transmitted from animals to humans could kill 12 times as many people in 2050 than they did in 2020, researchers have warned.. Epidemics caused by zoonotic diseases – also known as ...
[13]: 802 Plant viruses cannot infect humans and other animals because they can reproduce only in living plant cells. [13]: 799–807 Originally from Peru, the potato has become a staple crop worldwide. [180] The potato virus Y causes disease in potatoes and related species including tomatoes and peppers. In the 1980s, this virus acquired ...
Viral infections can cause disease in humans, animals and plants. In healthy humans and animals, infections are usually eliminated by the immune system, which can provide lifetime immunity to the host for that virus. Antibiotics, which work against bacteria, have no impact, but antiviral drugs can treat life-threatening infections. Those ...
This is the 61st human case of avian influenza reported this year in the U.S. Most of the cases have been mild and found among farmworkers exposed to the virus through contact with animals.