Patients of the TB center in Khayelitsha, South
Africa, wait to see doctors, March 23, 2009. Tuberculosis is a contagious lung
disease that spreads through the air, including through coughing and sneezing.
In a patient's fight against tuberculosis—the bacterial lung disease that kills
more people annually than any infectious disease besides HIV— doctors have more
than 10 drugs from which to choose. Most of those didn't work for Uvistra
Naidoo, a South African doctor who contracted the disease in his clinic. For
those who contract the disease now, maybe none of them will.
A new paper published earlier this week in
the Centers for Disease Control and Prevention's Emerging Infectious
Diseases journal warns that the first cases of "totally
drug-resistant" tuberculosis have been found in South Africa and that the
disease is "virtually untreatable."
Like many bacterial diseases, tuberculosis has been evolving to fend off many effective
antibiotics, making it more difficult to treat. But even treatable forms of the
disease are particularly tricky to cure; drug sensitive strains must be treated
with a six-month course of antibiotics.
Tougher cases require long-term
hospitalization and a regimen of harsh drugs that can last years.
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