There’s no doubt that vaccines have saved countless lives. Vaccines prevent more than 2.5 million unnecessary deaths every year.

From smallpox to polio to measles, vaccines have been saving lives for more than 300 years and large-scale vaccine production has helped countless people. In 2014 alone, the U.S. Centers for Disease Control and Prevention estimated that vaccinations would prevent more than 21 million hospitalizations and 732,000 deaths among children born in the last 20 years.

Large-scale vaccine production has helped keep many previously fatal diseases in check. The World Health Organization and the Measles and Rubella Initiative estimates that 17.1 million lives have been saved by the measles vaccination since 2000. Additionally, the number of measles-related deaths decreased 79 percent between 2000 and 2014 from 546,800 to 114,900.

For all of the good that vaccines can do and all the lives they can save, it’s important that they are stored properly. To ensur