When doctors carried out throat swabs from 82 other children at the centre, they found that ten were carrying the same multi-drug resistant strain of bacteria found in the two ill children.

BBC: Nursery

Burma's highly mobile migrant population may already be spreading the drug-resistant strain around the world.

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Health officials are worried because the drug-resistant strain is so hard to diagnose.

NPR: TB Traveler Exposes Diagnosis Problems

Still, it wasn't clear yet that Ms. Skipper carried the drug-resistant strain.

WSJ: TB's Global Resurgence Amplifies U.S. Risk

There is a drug resistant bacterial strain, called 19A, that became more prevalent as it filled the niche left by the bacteria vanquished by Prevnar.

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But it's a potential public health catastrophe with the new strain called XDR-TB, for extensively drug resistant tuberculosis.

NPR: TB Traveler Exposes Diagnosis Problems

One of the most severe cases of drug-resistant tuberculosis in the United States has been reported in southern Texas: a strain of TB resilient to at least eight of the 15 drugs used to treat this deadly airborne disease.

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