Morbillivirus is a genus of viruses in the order Mononegavirales, in the family Paramyxoviridae. Humans, dogs, cats, cattle, seals, and cetaceans serve as natural hosts. This genus currently included seven species. Diseases in humans associated with viruses classified in this genus include measles: fever, and rash; in animals, they include acute febrile respiratory tract infection.
Viral replication is cytoplasmic. Entry into the host cell is achieved by virus attaching to host cell. Replication follows the negative-stranded RNA virus replication model. Negative-stranded RNA virus transcription, using polymerase stuttering, through co-transcriptional RNA editing is the method of transcription. Translation takes place by leaky scanning. The virus exits the host cell by budding.
Humans, cattle, dogs, cats, and cetaceans serve as the natural hosts. Transmission routes are respiratory.