Commentary: Refrigeration alone can’t solve the ‘last mile’ problem for COVID-19 vaccines
The COVID-19 pandemic is far from over. The delta variant that devastated India has spread worldwide — and the next variant could be even more deadly. The pandemic will continue unchecked unless we support campaigns in fragile states such as South Sudan and Yemen to get more people vaccinated.
But vaccine availability does not automatically translate into shots in arms. The final stretch of a vaccine’s journey to its destination can involve complex logistics,
