THREAD: In 1894, Waldemar Haffkine, a Russian Jew trained in Paris, travelled to Calcutta armed with a cholera vaccine. The slums were battling an outbreak of the disease. The 33-year-old man began his vaccination drive,
'sitting by an oil lamp in the slum'. 1/11 #vaccine #India pic.twitter.com/XvKRbQQGLG

— Soutik Biswas (@soutikBBC) December 11, 2020