A dove rests on a tree near a Chinese sign read as 

A dove rests on a tree near a Chinese sign read as "China" at a park on Monday, April 1, 2013 in Shanghai, China. Two Shanghai men have died from a lesser-known type of bird flu in the first known human deaths from the strain, and Chinese authorities said Sunday it wasn't clear how they were infected but there was no evidence of human-to-human transmission. (AP Photo/Eugene Hoshiko)
Associated Press
A dove rests on a tree near a Chinese sign read as "China" at a park on Monday, April 1, 2013 in Shanghai, China. Two Shanghai men have died from a lesser-known type of bird flu in the first known human deaths from the strain, and Chinese authorities said Sunday it wasn't clear how they were infected but there was no evidence of human-to-human transmission. (AP Photo/Eugene Hoshiko)
View Comments