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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.
Infestations can be classified as either external or internal with regards to the parasites' location in relation to the host. External or ectoparasitic infestation is a condition in which organisms live primarily on the surface of the host (though porocephaliasis can penetrate viscerally) and includes those involving mites, ticks, head lice and bed bugs.
Articles about diseases and disorders which affect animals also. Pages in this category should be moved to subcategories where applicable. This category may require frequent maintenance to avoid becoming too large.
List of aquarium diseases; List of dog diseases; List of feline diseases; List of diseases of the honey bee; List of diseases spread by invertebrates; Poultry disease; Lists of zoonotic diseases, infectious diseases that have jumped from an animal to a human
An infectious disease, also known as a transmissible disease or communicable disease, is an illness resulting from an infection. Infections can be caused by a wide range of pathogens , most prominently bacteria and viruses . [ 2 ]
Parvoviruses are among the smallest viruses (hence the name, from Latin parvus meaning small) and are 18–28 nm in diameter. [16] Parvoviruses can cause disease in some animals, including starfish and humans. Because the viruses require actively dividing cells to replicate, the type of tissue infected varies with the age of the animal.
Charged with the responsibility of approving methods of animal disease diagnosis, the Biological Standards Commission [25] works to develop international standards for laboratory diagnostic tests and vaccines for WOAH-listed animal diseases of mammals, birds, and bees. The Scientific Commission, on the other hand, examines voluntary requests ...
(In the case of the lanthanides, the definition of an essential nutrient as being indispensable and irreplaceable is not completely applicable due to their extreme similarity. The stable early lanthanides La–Nd are known to stimulate the growth of various lanthanide-using organisms, and Sm–Gd show lesser effects for some such organisms.