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They are also related to the scab mite Psoroptes, also a mite that infests the skin of domestic animals. Sarcoptic mange affects domestic animals and similar infestations in domestic fowls cause the disease known as "scaly leg". The effects of S. scabiei are the most well-known, causing "scabies", or "the itch". The adult female mite, having ...
Most human cases have been reported in Thailand, although cases have been reported elsewhere. In humans, the four forms of the disease are: subcutaneous, disseminated, ocular, and vascular. [ 15 ] The ocular form of the disease is the only one known to infect otherwise healthy humans, and has been associated with contact lens use while swimming ...
Arabians, in particular, are inclined to guttural pouch tympany, as many have a congenital defect in the pharyngeal orifices of the pouches. [15] The infection can also be due to the rupture of the nearby retropharyngeal lymph nodes, usually caused by an abscess. [16] Diagnosis is established through and endoscopic examination.
In humans with this cancer there is increased ErbB2 production of receptor tyrosine kinase and Syrian hamsters with this cancer also have increased levels of that kinase. [9] As the tumor develops in the hamster, they also have increased gene expression in p53 and c-myc which is similar to human cancer development. [ 10 ]
A transmissible cancer is a cancer cell or cluster of cancer cells that can be transferred between individuals without the involvement of an infectious agent, such as an oncovirus. [ 1 ] [ 2 ] The evolution of transmissible cancer has occurred naturally in other animal species, but human cancer transmission is rare. [ 2 ]
SV40 replicates in the kidneys of monkeys without causing disease, but can cause cancer in rodents under laboratory conditions. In the 1950s and early 1960s, well over 100 million people may have been exposed to SV40 due to previously undetected SV40 contamination of polio vaccine , prompting concern about the possibility that the virus might ...
All BPVs have a circular double-stranded DNA genome of 7.3–8.0 kb. The genetic organisation of those BPVs which have been sequenced is broadly similar to other papillomaviruses. The open reading frames (ORFs) are all located on one strand, and are divided into early and late regions. The early region encodes nonstructural proteins E1 to E7.
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.