E-cigarette use triples in US teens
Some two million US high school students tried e-cigarettes last year, a rate that tripled in just one year, US health authorities said.
Hong Kong leader forced to speak on daughter's health
Hong Kong's leader Leung Chun-ying was forced to make an official statement about his daughter's health she posted a number of alarming messages on her Facebook page.
WHO names Ebola response chief
The World Health Organization said it had appointed its assistant director-general Bruce Aylward to head its overall response to the deadly Ebola outbreak.