(historical) A period of civil disorder that occurred from 10 to 16 November 1904, in the city of Rio de Janeiro, Brazil, in response to government officials entering homes to administer smallpox vaccines by force.

plural of DPT vaccine

(medicine, chiefly US) Any publicly administered vaccine comprising a combination of vaccines against diphtheria, pertussis (whooping cough) and tetanus.

(medicine) Mutation of a pathogen to a point where it is no longer recognized and counteracted by existing vaccines.

Opposing vaccines and vaccination.

Supporting vaccines and vaccination.

Supporting vaccines and vaccination.

plural of anti-vaccinator

An anti-vaccinationist.

The act of prioritising the distribution of vaccines to one's own country rather than actively partaking in a more globally equitable distribution.