**Question:** Name of mumps vaccine is:

A. Mumpsvax
B. Measles, Mumps, Rubella (MMR) Vaccine
C. MMRV (Mumps, Measles, Rubella, and Varicella) Vaccine
D. RotaTeq (rotavirus vaccine)

**Core Concept:** Mumps is a viral disease caused by the mumps virus, which is a member of the Paramyxoviridae family. The disease typically presents as fever, headache, muscle aches, and swollen salivary glands. Vaccination is an effective method to prevent mumps.

**Why the Correct Answer is Right:** The correct answer, Mumpsvax, is a monovalent mumps vaccine developed by the Polish immunologist, Dr. Albert Sabin. It is one of the earliest mumps vaccines available. However, in modern times, the most common mumps vaccine is the combined vaccine with measles, rubella, and varicella (chickenpox) - the MMRV vaccine (Measles, Mumps, Rubella, and Varicella). This combined vaccine is more practical as it reduces the number of injections required for children, thus improving vaccination compliance and reducing health care provider time.

**Why Each Wrong Option is Incorrect:**

A. Mumpsvax is a correct vaccine name but it is an outdated option with limited use.
B. Measles, Mumps, Rubella (MMR) vaccine is a combination vaccine, but the correct answer should be MMRV vaccine (option C).
C. RotaTeq is a rotavirus vaccine, unrelated to mumps. It is a pentavalent vaccine used to prevent rotavirus gastroenteritis, not mumps.
D. Rotarix is another unrelated vaccine, a monovalent RotaTeq, used to prevent rotavirus gastroenteritis, not mumps.

**Clinical Pearl:** The MMRV vaccine is the most commonly used mumps vaccine, providing protection against three additional diseases - measles, rubella, and varicella (chickenpox). This combined vaccine reduces the number of injections required, simplifying vaccination schedules for children and improving compliance.