Government-organised vaccination campaigns are political projects that presume to shape the immunity of whole populations. Like other pervasive expressions of state power – taxing, policing, conscripting – mass vaccination arouses anxiety in some people but sentiments of civic duty and shared solidarity in others. As a rule, controversy clings to immunisation programmes, and different social formations – classes, urban elites, ethnic and confessional majorities and minorities, specialised workforces, refugees, provincial antagonists of capital cities – have at different times and places disputed, evaded or actively opposed state-led vaccination. Nonetheless, in most communities vaccines have come to be accepted as the most effective means f...