Campaigning is one important part of reaching people, improving behaviour and achieving safer, high quality health care practices. For some aspects of infection prevention and control (IPC), campaigning can generate significant social pressure, participation and action. Campaigning can help build collective will, energy and momentum. The problem of health care-associated infection (HAI) can therefore partly be addressed through campaigning. By catalysing and driving the profile of key global campaigns, WHO’s IPC Global Unit aims to raise awareness and encourage policy change around priority IPC areas.