Cracking the cold chain challenge is key to making vaccines ubiquitous

Over the years vaccines have prevented countless cases of disease and saved millions of lives. Infectious diseases like polio, measles, diphtheria, pertussis (whooping cough), rubella (German measles), smallpox, mumps, tetanus and rotavirus used to be common around the world. Today vaccines can prevent them.
Despite this, one in five children in the world aren’t fully protected by even the most basic vaccines. In addition, almost 20 million are at risk of contracting preventable diseases because they are under-vaccinated. As a result about 1.5 million children die every year from diseases that can be prevented by vaccination coverage.