LA Times: An unusual virus known as chikungunya sickened at least 200 people and contributed to the death of a man in northeastern Italy this year, marking the first time the tropical virus has caused a disease outbreak in a temperate climate, researchers reported this month. The chikungunya virus, whose name derives from a word in an African language meaning "to become contorted," arrived in the Emilia Romagna region in June with a visitor from India and was spread through Asian …