Patients in isolation rooms are more often than not sick from a multi drug resistant organism (MDRO).
The multi drug resistant strains are often fatal and have mortality rates that are comparable with those which existed before the development of antibiotics.
Partially drug-resistant TB can now found in countries across the world, and "multi-drug resistant" strains affect countries such as Russia and China.
This is particularly important given the emergence of multi-drug resistant strains of the disease.
They then develop resistance to several medications, thus infecting their communities with multi-drug resistant strains of TB.
Almost half of patients with the multi-drug resistant form of the disease die.
The report also highlighted problems treating people with multi-drug resistant tuberculosis.
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.
About one quarter of previously untreated TB patients were infected with the multi-drug-resistant TB.
WSJ: Tuberculosis Strain in Mumbai Doesn't Respond to Main Treatment
In a 2003 study, the researchers reported 30% of their newly diagnosed patients were multi-drug-resistant.
WSJ: Tuberculosis Strain in Mumbai Doesn't Respond to Main Treatment
This included a large number of newly diagnosed patients, 13% of whom were found to be multi-drug-resistant, the study said.
WSJ: Tuberculosis Strain in Mumbai Doesn't Respond to Main Treatment
Through Partners in Health, this approach successfully checked multi-drug-resistant tuberculosis in Peru.
India is addressing the issue of multi-drug-resistant tuberculosis with a plan endorsed by international experts, including the WHO, during the latest monitoring mission in August.
WSJ: The WHO Supports India's Fight Against MDR-TB �� Letters to the Editor
In some small studies in India, a big portion of untreated or newly diagnosed patients were multi-drug-resistant, meaning they had picked up resistant forms of the disease.
WSJ: Tuberculosis Strain in Mumbai Doesn't Respond to Main Treatment
Now Novartis is launching its own research institute, in Singapore, to discover drugs for dengue fever and multi-drug-resistant tuberculosis especially nasty in the poorer bits of Asia and Africa.
ECONOMIST: Drug firms are starting to tackle tropical diseases
In Uttar Pradesh, India's most populous state with 200 million people, a study published in 2008 in the Indian Journal of Medical Research showed about 20% of TB patients were multi-drug-resistant.
WSJ: Tuberculosis Strain in Mumbai Doesn't Respond to Main Treatment
The WHO's latest estimate that about 2.1% of previously untreated and 15% of previously treated TB patients in India are multi-drug-resistant is based on surveys done by just a few Indian states, he said.
WSJ: Tuberculosis Strain in Mumbai Doesn't Respond to Main Treatment
When China released its first nationwide survey this year, it found 5.7% of that country's newly diagnosed TB patients were multi-drug-resistant, according to a study published this year in the New England Journal of Medicine.
WSJ: Tuberculosis Strain in Mumbai Doesn't Respond to Main Treatment
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