Temperature Sensitivity of Vaccines

All vaccines are sensitive to extreme heat and extreme cold and require both proper vaccine storage and management to avoid any loss of potency.

Immunization is the most effective and economical public health measure against infectious diseases that cause morbidity or mortality. Immunization prevents two to three million deaths every year from diseases such as hepatitis, pertussis (whooping cough), influenza, and measles. In spite of this, more millions of deaths could be avoided if temperature-dependent vaccines were transported and stored correctly.