The NHS is buying drugs from pharmaceutical companies in India whose dirty production methods are fuelling the rise of superbugs, and there are no checks or regulations in place to stop this happening.

The growth in superbugs – infections which are resistant to antibiotics – is one of the biggest public health crises facing the world today, and pollution in drug companies’ supply chains is one of its causes. Yet the Bureau of Investigative Journalism has established that firms with a history of bad practice and pollution are supplying the NHS, and environmental standards do not feature in NHS procurement protocols.

New tests on water samples taken outside pharmaceutical factories in India which sell to the NHS found they contained bacteria which were resistant to the antibiotics made inside the plants.

This suggests industrial waste containing active antibiotic ingredients is being leaked into the surrounding environment. Studies have shown how this causes nearby bacteria to develop immunity to the drugs – creating “superbugs” – and that those resistant bacteria then spread around the world.

Responding to the Bureau’s findings, the Department of Health (DoH) said it would consider bringing in new rules for antibiotic factories which export drugs to Britain.

The Bureau’s investigation also established that at least three companies licensed to supply the NHS have not signed up to a new roadmap put in place following a recent United Nations antibiotic resistance summit, in which 13 global pharmaceutical firms pledged to review manufacturing and supply chains to make sure the release of antibiotics into the environment was being properly controlled.

Economist Lord Jim O’Neill, who conducted a major review into global antibiotic resistance, also known as antimicrobial resistance (AMR), told the Bureau the results of the tests were “deeply troubling”. His government-commissioned study found superbugs would kill more people than cancer by 2050 if no action is taken, and cited pollution in pharmaceutical supply chains as a major problem.