The highly contagious Delta variant of COVID-19 is spreading throughout more than 130 countries around the world. We know vaccines are the most effective way to protect people from the virus, yet low-income countries have been left behind in the global vaccine rollout and remain extremely vulnerable to the virus. In many of the countries where Doctors Without Borders works, our teams are seeing the impact of the Delta variant firsthand—more people are getting sick and dying, and hospital systems