The less benign can cause lethal diseases.
Smallpox was one of the most lethal diseases in history.
"We might have to curtail research for several lethal diseases that we are seeking treatments for.
In the nineteen-fifties, the country began introducing lethal diseases, including the myxoma virus, into the rabbit population.
In the nineteen-fifties, the country began introducing lethal diseases, including the myxoma virus, into the population.
Scientists have recreated the powerful whiff of smelly feet to lure mosquitoes into traps and slow the spread of malaria and other lethal diseases.
This map will guide our future treatment and trials for this group of different lethal diseases," Professor de Bono said.
Studies of past outbreaks have shown that lethal diseases that lack a cure tend to provoke overreactions.
Parents born in the United States, on the other hand, are more skeptical of vaccines, as many have no living memory of the lethal diseases they prevent.
The W.H.O. and public-health agencies like the Centers for Disease Control and Prevention find themselves in a delicate balance, obliged to provide information about potentially lethal diseases without causing panic.
"I am guided by evidence above all," Eric Rose told me recently, when I visited him in his office, at Siga Technologies, a biotechnology firm that develops treatments for highly lethal diseases like smallpox and Ebola fever.
