Dr. Mario Zambrano, Pediatric Emergency Medicine Physician with Homestead Hospital, explains the difference between inoculations and vaccinations. “With inoculation, they used to take pus or agents from the scab, and inject that into a patient to prepare the body to fight the infection. Nowadays, we have purified antigen; that’s safer, it doesn’t cause as much reaction, and doesn’t cause the disease.”

He also says the inoculations would make you sick, and some people would even die from it. According to him, vaccines are useful so your body can create a memory of the condition, because the body learns by suffering these conditions and prepares the immune system.