Spanish museum celebrates vaccine pioneer who used children as refrigerators

Francisco Javier de Balmis led an expedition to vaccinate against smallpox in Latin America and the Philippines. Photograph: Prisma Archivo/Alamy

Francisco Javier de Balmis led an expedition to vaccinate against smallpox in Latin America and the Philippines. Photograph: Prisma Archivo/Alamy

source https://www.theguardian.com/world/2021/jul/27/spanish-museum-celebrates-pioneer-who-took-smallpox-vaccine-to-colonies