Researchers say they have found "unequivocal" evidence that chronic fatigue syndrome is not an imaginary illness, but a genuine condition that causes the immune system to go into overdrive, leaving patients feeling perpetually exhausted.
PTSD, or post-traumatic stress disorder, is often thought of as a condition affecting combat veterans. But first responders say it's a huge problem among paramedics, firefighters and other emergency workers too, yet widely ignored.
Medical experts warned Friday the anti-vaccination lobby is growing in Bosnia, using scientifically discredited arguments to stoke parental fears in the worst-affected country in Europe's measles outbreak.
A recent surge in human infections caused by bird flu viruses and a proliferation of the types of animal flu viruses sparking infections in people are events that need to be watched, the World Health Organization said Thursday.