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Morbillivirus is a genus of viruses belonging to the family Paramyxoviridae. These viruses are known for causing significant diseases in various animal species, including humans.12

Key characteristics and examples include:
* Causative Agents: Morbilliviruses are responsible for diseases such as measles in humans, distemper in dogs and cats, and rinderpest in cattle.12
* Viral Structure: They are enveloped viruses with a helical nucleocapsid containing a single strand of negative-sense RNA.2
* Etymology: The name "Morbillivirus" originates from the Latin word for "spot on the skin" or "pustule," reflecting visible symptoms of some infections.1

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2 Britannica Sources
  1. morbillivirus
  2. paramyxovirus

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