By Antonia Chan Cuba has become the first country to eliminate mother-to-child transmission of HIV, marking a global public health milestone. Executive director of UNAIDS Michel Sidibé called Cuba’s achievement proof that “ending the AIDS epidemic is possible.” Key to the success was Cuba’s participation in a multi-country project started by the WHO and Pan-American Health Organization in 2010. Designed to eliminate both mother-to-child HIV transmission and syphilis, each country…