Viruses in the family Arenaviridae are generally spread by rats, with each virus connected with one, or a couple of, closely related rodent varieties that serve as the virus' all-natural reservoir. In some areas of the world, arenavirus infections in people are relatively common and can cause severe disease. Lymphocytic choriomeningitis virus was the first arenavirus recognized. Since then, new arenaviruses have been discovered consistently. While rodent hosts are constantly contaminated with an arenavirus, they do not show up to come to be ill. Most infections spread out among adult rodents through scratches and attacks, although for sure arenaviruses, the virus passes from mother to children during pregnancy. People can also get contaminated by touching their face after touching the virus, through the attacks or scrapes of infected rats, and by eating contaminated food. In some circumstances, arenaviruses can spread to people when consuming contaminated rats as a food source. This type of transmission usually takes place when there is straight contact with the blood or other body fluids of infected individuals. Arenaviruses are split into 2 groups, New World and Old World viruses, based on hereditary distinctions as well as where the viruses are geographically distributed. New World infections are found in the Western Hemisphere, North and South America. They include Chapare virus, a serious or fatal hemorrhagic fever, found in Bolivia, in addition to Guanarito virus found in Venezuela. Vintage infections occur in the Eastern Hemisphere, Africa, Europe, and Asia. Lassa fever, which can cause mild to serious disease in people, is found in West Africa. LCMV, classified as an Old World arenavirus, is the only arenavirus found in both the Eastern and western Hemisphere.
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