She suspects that chimps may be a step ahead of humans in how their bodies deal with the virus.

VOA: special.2009.09.08

It carried the man who became the first human to step on the moon, Neil Armstrong, a former X-15 pilot.

VOA: special.2010.07.07

The tests are the first step in human clinical trials of two vaccine candidates developed at the University of Cape Town.

VOA: special.2009.07.29

So they took an extreme step. They formed their own government in opposition to the elected government of the territory.

VOA: special.2009.05.07

Still,EU Fisheries Commissioner Maria Damanaki said the meeting took "a step in the right direction for sustainable management" of bluefin tuna.

VOA: special.2010.12.14

He had told a friend, "You come to realize that life is short, and you have to step up.

VOA: special.2010.02.07

But he was also right that it would be the first step toward ending slavery in the United States.

VOA: special.2010.05.10

Professor Christiano says the next step is to repeat the study in future research, with a larger number of patients.

VOA: special.2011.04.05

He says identifying human antibodies that will stop the ability of the virus to reinvent itself is the first step.

VOA: special.2009.03.04

Bankers were forced to step in to save the company from financial ruin and Mister Durant was removed from control.

VOA: special.2009.10.09

Yet the passage of these three amendments to the Constitution was still a historic step in making blacks full and equal citizens.

VOA: special.2010.02.04

As a final step there are plans to pump in mud and cement from below through relief wells.

VOA: special.2010.08.07

Mark Bedau of Reed College in Oregon says Mister Venter's work marks an important step over traditional genetic engineering of individual genes.

VOA: special.2010.07.20

So an astronaut on the flight of Gemini Four, Ed White,took that first frightening step into the unknown.

VOA: special.2009.07.01