To get at these non-mutating parts of the virus, Nabel and his colleagues used a two-step vaccination process, called "prime-boost."

VOA: standard.2010.07.21

this is a NATO mission as well." "And we are working actively and diligently to consult with NATO at every step of the way."

VOA: standard.2009.09.29

One observer,Akiva Eldar, a senior columnist at the Haaretz newspaper in Tel Aviv, sees no movement unless one of the sides takes the first step.

VOA: standard.2009.11.16

Its smaller companies will not be covered. The head of Middle East research at Swiss-based financial firm UBS, Saud Masud,says it is a step in the right direction.

VOA: standard.2009.12.02

According to media reports, the head of General Motors,Rick Wagoner, has agreed to step down at the request of the White House, as part of a restructuring plan.

VOA: standard.2009.03.30