On the other side of town, scientists are working on a genetic test they hope will cut the time it takes to diagnose MDR-TB from 70 days to two days.

VOA: standard.2010.07.12

Still,Mr.Obama's critics say his trip to China will be a test of whether the U.S and China can develop better ties, and whether American acquiescence on some issues will produce concrete results on others.

VOA: standard.2009.11.10