Extensively drug-resistant tuberculosis, or XDR-TB, will not respond to any of those drugs but might still be treatable.

VOA: special.2009.03.25

Professor Strauss has written extensively about physical punishment of children.

VOA: special.2009.10.21

In addition to his work as a scientist, Ayala has also written and lectured extensively on religion and science.

VOA: standard.2010.04.05

Also,Bolivar traveled and battled extensively, in Peru and other mountainous areas where arsenic is a common mineral found in ground water.

VOA: standard.2010.06.09

He says the tuberculosis epidemic is far from over and is being aggravated by multi-drug resistant TB and its even more dangerous form, extensively drug-resistant TB.

VOA: standard.2009.12.09

The Midwestern city of 250,000 is not only home to the largest Burmese community in America, the U.S.State Department also uses it extensively as a resettlement site.

VOA: standard.2010.07.22

Five existing arenas have been extensively refurbished.

VOA: standard.2010.06.02

"We discussed climate change extensively and all of us agreed that it was imperative for us to redouble our efforts in the weeks between now and the Copenhagen meeting to assure that we create a framework for progress in dealing with what is a potential ecologic disaster,"

VOA: standard.2009.11.03