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Zoonosis. A zoonosis ( / zoʊˈɒnəsɪs, ˌzoʊəˈnoʊsɪs / ⓘ; [ 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 (usually a vertebrate) to a human and vice versa. [ 1][ 2][ 3] Major modern ...
2,700 (2015) [4] Ascariasis is a disease caused by the parasitic roundworm Ascaris lumbricoides. [1] Infections have no symptoms in more than 85% of cases, especially if the number of worms is small. [1] Symptoms increase with the number of worms present and may include shortness of breath and fever in the beginning of the disease. [1]
Rinderpest was mainly transmitted by direct contact and by drinking contaminated water, although it could also be transmitted by air. [4] Rinderpest is believed to have originated in Asia, and to have spread by transport of cattle. [5] [6] [7] The term Rinderpest (German: [ˈʁɪndɐˌpɛst] ⓘ) is a German word meaning "cattle plague".
Chickenpox. Chickenpox, also known as varicella ( / ˌvɛrəˈsɛlə / VER-ə-SEL-ə ), is a highly contagious, vaccine-preventable disease caused by the initial infection with varicella zoster virus (VZV), a member of the herpesvirus family. [ 3][ 7][ 5] The disease results in a characteristic skin rash that forms small, itchy blisters, which ...
An infectious disease agent can be transmitted in two ways: as horizontal disease agent transmission from one individual to another in the same generation (peers in the same age group) [3] by either direct contact (licking, touching, biting), or indirect contact through air – cough or sneeze (vectors or fomites that allow the transmission of the agent causing the disease without physical ...
Orf is a zoonotic disease, meaning humans can contract this disorder through direct contact with infected sheep and goats or with fomites carrying the orf virus. [6] It causes a purulent-appearing papule locally and generally no systemic symptoms.
Furthermore, wildlife disease is a disease when one of the hosts includes a wildlife species. In many cases, wildlife hosts can act as a reservoir of diseases that spillover into domestic animals, people and other species. Wildlife diseases spread through both direct contact between two individual animals or indirectly through the environment.
The 1990–2013 Global Burden of Disease Study estimated 5,500 direct deaths from schistosomiasis, [76] while more than 200,000 people were estimated in 2013 to die annually from causes related to schistosomiasis. [77] Another 20 million have severe consequences from the disease. [78] It is the most deadly of the neglected tropical diseases. [79]