Brian Deer

Brian Deer is a British investigative journalist best known for a sustained decade-long investigation, primarily for The Sunday Times, that uncovered the fraud at the heart of the 1998 Lancet paper linking the MMR vaccine to autism. That paper, authored by Andrew Wakefield and colleagues, triggered a global vaccine scare that contributed to measles outbreaks across the UK and United States and remains one of the most consequential acts of scientific fraud in modern medical history. Deer's reporting, which began in 2004, revealed that Wakefield had undisclosed conflicts of interest, had manipulated patient data, and had conducted unauthorized invasive procedures on children.

Deer's investigation culminated in a series of articles published in the British Medical Journal in 2011, in which editors described Wakefield's paper as "an elaborate fraud" — not merely bad science, but deliberate data falsification. The UK General Medical Council conducted a 217-day inquiry informed in part by Deer's findings. In January 2010, the GMC found Wakefield guilty of serious professional misconduct, and on 24 May 2010, Wakefield was struck off the UK medical register. The original Lancet paper had already been formally retracted. Deer's reporting is credited with triggering the longest GMC fitness-to-practice hearing in history.

In 2020 Deer published The Doctor Who Fooled the World, a full-length book account of the Wakefield investigation. His work is considered one of the most important examples of investigative journalism directly affecting public health in the 21st century, demonstrating both the damage that fraudulent science can cause when amplified by media and the capacity of sustained investigative reporting to hold that damage accountable.