Search results
Results From The WOW.Com Content Network
The black rat is a reservoir host for bubonic plague. The rat fleas that infest the rats are vectors for the disease. In biology and medicine, a host is a larger organism that harbours a smaller organism; [1] whether a parasitic, a mutualistic, or a commensalist guest . The guest is typically provided with nourishment and shelter.
A reservoir is usually a living host of a certain species, such as an animal or a plant, inside of which a pathogen survives, often (though not always) without causing disease for the reservoir itself. By some definitions a reservoir may also be an environment external to an organism, such as a volume of contaminated air or water. [1] [2]
reservoir hosts unknown [12] mosquito bite (Anopheles funestus, Anopheles gambiae) First identified in 1959 in Uganda. Orf: Orf virus: goats, sheep close contact Pasteurellosis: Pasteurella multocida: domestic cats, dogs, livestock, and wild animals bites, scratches, inhalation of aerosols, or contact with infected secretions Powassan encephalitis
The bumblebee is a potential reservoir for several pollinator parasites. Commercially bred bumblebees used to pollinate greenhouses can be reservoirs for several pollinator parasites including the protozoans Crithidia bombi, and Apicystis bombi, [10] the microsporidians Nosema bombi and Nosema ceranae, [10] [11] plus viruses such as Deformed wing virus and the tracheal mites Locustacarus ...
Cross-species transmission is the most significant cause of disease emergence in humans and other species. [citation needed] Wildlife zoonotic diseases of microbial origin are also the most common group of human emerging diseases, and CST between wildlife and livestock has appreciable economic impacts in agriculture by reducing livestock productivity and imposing export restrictions. [2]
Balantidiasis is the only ciliate known to be capable of infecting humans, and swine are the primary reservoir host. [27] Balantidiasis is opportunistic and rare in Western countries. [28] Apicomplexans are parasites of animals and contain an arrangement of organelles called the apical complex. One example of an apicomplexan is Malaria.
Rodents, rabbits, and hares often serve as reservoir hosts, [19] but waterborne infection accounts for 5–10% of all tularemia in the United States, [20] including from aquatic animals such as seals. [21] Tularemia can also be transmitted by biting flies, particularly the deer fly Chrysops discalis. Individual flies can remain infectious for ...
The tegument coats the worm and acts as a physical barrier to host antibodies and complement. Host immune defenses are capable of producing superoxide, but these are counterattacked by antioxidant proteins produced by the parasite. Schistosomes have four superoxide dismutases, and levels of these proteins increase as the schistosome grows.