THE era of antibiotics is coming to a close. In just a couple of generations, what once appeared to be miracle medicines have been beaten into ineffectiveness by the bacteria they were designed to knock out. Once, scientists hailed the end of infectious diseases. Now, the post-antibiotic apocalypse is within sight.

The journal Lancet on Wednesday posed the question itself over a paper revealing the rapid spread of multi-drug-resistant bacteria. “Is this the end of antibiotics?” it asked.

Doctors and scientists have not been complacent, but the paper by Prof Tim Walsh and colleagues takes the anxiety to a new level. Last September, Walsh published details of a gene he had discovered, called NDM 1, which passes easily between types of bacteria called enterobacteriaceae such as E. coli and Klebsiella pneumoniae and makes them resistant to almost all of the powerful, last-line group of antibiotics called carbapenems.

Wednesday's paper revealed that NDM 1 is widespread in India and has arrived here as a result of global travel and medical tourism for, among other things, transplants, pregnancy care and cosmetic surgery.

“In many ways, this is it,” Walsh tells me. “This is potentially the end. There are no antibiotics in the pipeline that have activity against NDM 1-producing enterobacteriaceae. We have a bleak window of maybe 10 years, where we are going to have to use the antibiotics we have very wisely, but also grapple with the reality that we have nothing to treat these infections with.”

And this is the optimistic view — based on the assumption that drug companies can and will get moving on discovering new antibiotics to throw at the bacterial enemy. Since the 1990s, when pharma found itself twisting and turning down blind alleys, it has not shown a great deal of enthusiasm for difficult antibiotic research. And besides, because, unlike with heart medicines, people take the drugs for a week rather than life, and because resistance means the drugs become useless after a while, there is just not much money in it.

For a long time now, doctors have known they were in a race to stay a few steps ahead of the rapidly growing resistance of bacterial infections to antibiotics. Ten years ago, the so-called superbug MRSA caused front-page panic in the UK. Hospital patients were picking up Staphylococcus aureus infections that were resistant to the hitherto powerful antibiotic methicillin. All-out war, led by the UK government's former chief medical officer Sir Liam Donaldson, against MRSA and also C. diff (Clostridium difficile) has reduced the threat of what are known as Gram-positive bacteria. Hospital hygiene has been massively stepped up and, in response in part to public anxiety, pharmaceutical companies have put money into finding new antibiotics for those infections.

So the game now is to keep bacteria at bay. Hygiene is an obvious weapon.

— The Guardian, London