What is All of the viruses cause pneumonia except: and explain in detail?
Several viruses can lead to viral pneumonia, including:

Adenoviruses, which can also cause the common cold and bronchitis.
Chickenpox (Varicella-zoster virus).
Flu (influenza viruses).
Respiratory syncytial virus, which causes cold-like symptoms.
Cytomegalovirus, measles, retrovirus.

Mumps is an acute infectious disease of children, characterized by acute, nonsuppurative, painful swelling of the salivary glands, caused by mumps virus.
 
Parija SC. Textbook of Microbiology & Immunology. Elsevier Health Sciences; 2014. Page:519