Washington (ChattahBox) - Scientists from the U.S. Centers for Disease Control and Prevention (CDC) have stressed the importance of screening all U.S. immigrants from Africa and Southeast Asia for tuberculosis (TB) before entering the U.S. CDC researchers were led by Dr. Kevin P. Cain, looking over data from foreign-born people in the U.S. who were all diagnosed with TB. In total, the data spanned from 2001 to 2006, and consisted of 46,970 cases. The CDC found that foreign-born immigrants made up 57% of the new tuberculosis cases in the U.S. over the past years, with 22% of those foreign-born immigrants coming from Southeast Asia and Africa. This comes as the drug-resistant form of TB continues to spread in countries such as Peru, China, Vietnam, and the Philippines. The CDC is stressing the importance of screening these immigrants coming into the U.S. before they enter the country, to control the spread of TB. ...