GMA News: The number of dengue fever, typhoid fever, and cholera cases in the country in 2008 rose due to the effects of global warming, Health Secretary Francisco Duque said Friday. In an interview over radio dzBB, Duque said the effects of global warming were becoming evident in the type of diseases that spread across the country over the past year. “Mukhang yun ang lumalabas ayon sa aming mga datos, at bunsod na rin ito ng global warming (That’s what our data indicate, and this is …