Zimbabwe on Monday launched a cholera vaccination campaign to immunize over 2 million people against the waterborne disease, amid an outbreak that has killed hundreds since early last year. Cholera had killed 452 people and infected a total of 20,446 in the southern African country as of Jan. 24, since the outbreak started in February 2023, according to health ministry statistics. Zimbabwe will receive a total of 2.3 million vaccine doses from UNICEF and the World Health Organization to be deployed to 29 of the hardest-hit districts.