Mumps virus causes mumps which is a common childhood disease characterized by swelling of the parotid glands and other epithelial tissues causing high morbidity in some cases deafness. Infection is currently restricted to humans while the virus is transmitted by direct contact, droplet spread, or via contaminated objects. It is a vaccine preventable disease although significant outbreaks have occurred in recent years in regions with high levels of vaccination. The virus belongs to the genus Rubulavirus in the family Paramyxoviridae.
The molecular assembly of protein, RNA and lipids allows a single virus to bind to and infect specific cells and replicate itself and finally exit the cell to be transmitted to the next susceptible host.