Akiyoshi Konno has written:

'A study on the pathogenesis of recurrent parotitis in childhood' -- subject(s): Parotitis

Yes, parotitis is highly contagious. This disease can be contagious for up to 4 days after the person starts showing symptoms.

Yes, it can.

Yes, epidemic parotitis.

Epidemic parotitis because it affects the parotid glands and is contagious and caused epidemics in history.
The scientific name for mumps is Epidemic parotitis. The virus can cause pain, fever and swelling in the salivary glands.