For a lot of parents, keeping track of their children's immunizations can be a challenge. Today, the mandatory vaccines cover ten diseases with multiple shots, and that number may double in the next decade.

Because pediatricians are tired of making their patients human pincushions, researchers are now working on a number of supervaccines, that would combine existing inoculations into one shot.

The most recent supervaccine takes the MMR vaccine, which combines Mumps, Measles, and Rubella, and combines it with Chickenpox, Polio, Whooping Cough, Tetanus, Diphtheria, Hepatitis B, and Meningitis. Doctors say that still doesn't target illnesses like Pneumonia, Typhoid, Encephalitis, Diarrhea, Strep, or Flu, all of which are major threats to our children. So scientists are hoping to develop even more supervaccines to fight those diseases.

Some pediatricians are already offering some of these supervaccines, successfully. But they're expensive, hundreds of dollars in some cases.