By Maria Cheng
Q: Which virus should we be more worried about?
A: It's impossible to know. "We really don't want to play the game of predicting which virus will be more deadly than the other," Hartl said. At the moment, both are worrisome since so little is known about how they are infecting humans and both appear to cause severe disease. "Any virus that has the ability to develop the capacity to spread from human to human is of great concern to WHO," he said.
Full article: https://www.dailyherald.com/article/20130520/entlife/705209971/