The world is the planet Earth and all life upon it, including human civilization. In a philosophical context, the world is the whole of the physical Universe, or an ontological world. In a theological context, the world is the material or the profane sphere, as opposed to the celestial, spiritual, transcendent or sacred.
Should your child require the mumps vaccine post blood testing, you will need to consider getting the combined MMR vaccine done. The single measles and rubella vaccines are still readily available. Alternatively you could bypass the blood testing route and opt for the combined MMR vaccine.
Most infants and children receive a vaccine for measles, mumps, and rubella (MMR) at the same time. The first MMR shot is generally given between the ages of 12 and 15 months at a routine well-child visit. A second vaccination is required for school-aged children between 4 and 6 years old.