This vaccine protects against measles, mumps, and rubella


Active ingredients:

Live attenuated measles, mumps, and rubella viruses, which are weakened versions of the whole viruses that are unable to cause disease.

Inactive ingredients:

Salts: help maintain the stability and pH of the vaccine

Carbohydrates (sugars): normally used as stabilizers in vaccines

 Antibiotics:  used to prevent contamination during the manufacturing process

Growth agents: ingredients that help the active ingredients grow in order to make the vaccine


Some religions such as Islam and Judaism prohibit the consumption of porcine (pork) products. However, according to Jewish law, this does not extend to vaccines because it is not oral consumption. In addition, in Islam, the use of porcine gelatin in vaccines is permitted if lives are at risk and there are no alternatives.

Relevant Terms

  • Antibiotics: substances that kill bacteria or prevent them from dividing. Antibiotics are used in some vaccines to prevent contamination during the manufacturing process.

  • Attenuated: The pathogen is weakened but not completely inactivated. Attenuated pathogens are too weak to cause disease in almost all people. 

  • Carbohydrates: Another word for sugars

  • Carcinogen: a substance that causes cancer

  • pH: a measure of how acidic or basic a solution is. The scale ranges from 0 (very acidic) to 14 (very basic). A pH of 7 is neutral.