Ancient killer bug thrives in shadow of London’s Canary Wharf

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Tower Hamlets shares some of that wealth as bankers and lawyers jostle out of the Underground and into the headquarters of banks like Barclays and HSBC Holdings. Two miles from the stadium where the Summer Olympics will be held later this year, it also ranks as one of the country’s most deprived boroughs, with the highest child poverty rate in England as well as the capital’s fifth-highest tuberculosis rate.

BY ANDREA GERLIN | BLOOMBERG NEWS

LONDON — In the shadows of some of London’s tallest skyscrapers and richest banks lurks a disease borne of the poverty and squalor usually associated with the Victorian era rather than a 21st-century financial capital.

Tuberculosis is staging a comeback in London, where some neighborhoods suffer infection rates found in African countries in which the disease is endemic. The number of cases surged 50 percent in the 10 years to 2009, according to a National Health Service agency.

The airborne bacteria has taken root in a population of recent immigrants, addicts and homeless who live close to affluent business districts and may pose a risk for those they rub elbows with.

“You wouldn’t expect to see that,” says Brian McCloskey, the Health Protection Agency’s regional director for London. “TB is one of the biggest public health problems we have.”

One hotspot is Tower Hamlets, a borough that draws together Canary Wharf, the home of some of Europe’s largest banks, and pockets of poverty that stretch along the Thames’ old docks east of the Tower of London and north past Whitechapel, where Jack the Ripper preyed on prostitutes in 1888.

Tuberculosis, transmitted by coughs and sneezes, doesn’t just strike the needy.

After a worker at a Canary Wharf bank fell ill in 2010, Julian Surey, a nurse at Tower Hamlets Tuberculosis Service in East London, says he was sent with colleagues to her office to screen 14 of her co-workers, a challenge in an open-space environment where employees share keyboards and telephones.

“They were hot-desking and it was a nightmare,” Surey says. “People did get concerned.” Some workers demanded to see private doctors rather than be tested and treated by the state-run NHS, the 37-year-old nurse recalled. One person who sat next to the original patient contracted TB, according to Surey. He declined to identify the bank, as did other nurses.

One sneeze can release up to 40,000 droplets and each one can potentially cause infection. An untreated patient can infect up to 15 others a year, the World Health Organization estimates.

The condition, which can remain dormant in the body for decades but spread through the air and require extended courses of antibiotics once it has been roused, is difficult to diagnose, treat and contain.

“Can you get it on the Tube? In theory, yes,” Surey says. “It can go to everyone,” he says of the disease, which once active can kill half of those it infects if they aren’t treated.

Transmission is more common among members of the same household, according to McCloskey. Treatment usually requires taking one or two antibiotics for three to six months, costing about $3,155 for an uncomplicated case.

But drugs are only part of the solution. Tuberculosis is a sensitive subject with social and political ramifications, says Graham Cooke, a senior lecturer in the department of medicine at the Faculty of Medicine at Imperial College London.

In the British capital, 84 percent of the 3,302 people infected in 2010 were foreign-born, according to the HPA, which means they may be grappling with language barriers, fear of stigmatization or homelessness.

“You don’t just give them tablets,” says Surey, who has worked as a nurse in Kolkata, India, and Lima, Peru. “You have to understand the community.”

That’s why one of his most trusted tools for dealing with patients is a bike.

Since people who stop treatment early can become contagious and develop a form of the disease resistant to almost all antibiotics, Surey cycles around delivering appointment reminders to homeless patients, ensuring others take their pills and tracking down those who skip appointments.

“If they don’t take their medicine, they could become infectious again,” says Surey, who recently chased down a young addict after she absconded from a Royal London Hospital ward during treatment. “I went out on my bike and found her, bloodied and drunk on Brick Lane, leaning against a lamppost.”

The disease was as prevalent in London as in some of the world’s poorer nations in 2010. The city had 43 cases per 100,000 overall and rates of 65 or more per 100,000 in hotbeds such as Tower Hamlets, some of them on par with Karonga district in Malawi, says Ali Zumla, a professor at University College London. By contrast, New York reports nine cases per 100,000 people and Berlin eight.

Britain’s colonial history, which ties it to countries like India, Pakistan, Nigeria and Bangladesh where tuberculosis is rife, play a role. London’s growth as a financial capital, which acts as an immigration magnet, combined with the city’s residual pockets of poverty, is also a factor, according to the HPA’s McCloskey.

The European Union’s most populous city, London is home to 241 foreign banks and 65 Michelin-starred restaurants. The average annual pay for a City of London worker is $66,007, according to a 2010 PriceWaterhouseCoopers report.

Tower Hamlets shares some of that wealth as bankers and lawyers jostle out of the Underground and into the headquarters of banks like Barclays and HSBC Holdings. Two miles from the stadium where the Summer Olympics will be held later this year, it also ranks as one of the country’s most deprived boroughs, with the highest child poverty rate in England as well as the capital’s fifth-highest tuberculosis rate.