Housed in the London School of Hygiene & Tropical Medicine's Vaccine Centre, the VCP uses a diagnostic tool that finds what sparks vaccine rumours, examines and evaluates what spreads those rumours and calculates the potential impact.

[8][9]The VCP is an early-warning system which identifies and evaluates public confidence in vaccines, with monitoring capabilities in some 63 languages.

[3] The VCP is a member of the Vaccine Safety Net, a project led by the World Health Organization.

[11] In 2011, research by the VCP found that refusal to vaccinate against polio increased in the Taliban dominant areas of Balochistan and FATA following rumours about the polio eradication programmes, triggered by the story of the CIA's fake immunisation campaign in the search for Bin Laden.

The study looked at data on the importance, efficacy and safety of vaccines in 290 national surveys of 284,381 adults in 149 countries, and found wide variation around the world.