In 1904, some 16 years after the law abolishing slavery, the government of Brazil ordered "sanitary brigades" accompanied by police units to enter homes in Rio de Janeiro and vaccinate residents against smallpox by force. This action triggered the Vaccine Revolt, including in the predominantly Afro-Brazilian district of Saude. After 30 people were killed the authorities abandoned forcible vaccination, only to reintroduce it in 1909 after removing many working class people from central Rio and deporting hundreds of rebels by packet boat.
On what other occasions either in Brazil or in the rest of the world have governments carried out programmes of forcible vaccination?