"In the end, areas in the north and west of India saw death rates between 4.5% and 6% of their total populations, while the south and east – where the virus arrived slightly later, as it was waning – generally lost between 1.5% and 3%. Geography wasn’t the only dividing factor, however. In Mumbai, almost seven-and-a-half times as many lower-caste Indians died as compared to their British counterparts - 61.6 per thousand versus 8.3 per thousand."