By Jessica Berman Washington 06 February 2008 Researchers say measles, which has been successfully controlled in most countries thanks to vaccination, remains a killer disease in Niger, in part because of migration triggered by the rainy season. VOA'...
SCIENCE REPORT – January 3, 2002: Seasonal Affective Disorder By George Grow This is the VOA Special English SCIENCE REPORT. Some people feel sad or depressed during the winter months in northern ar...
