Scientists say an experimental vaccine reduced the risk of infection in human beings by thirty-one percent and was safe.

VOA: special.2009.10.13

A new study in the journal Nature has shown some hopeful results from an experimental gel that might protect women from H.I.V.

VOA: special.2009.03.16

The exact cause is unknown. But in a recent study, an experimental drug showed signs of halting the disorder in laboratory mice.

VOA: special.2010.05.19

Scientists say an experimental vaccine reduced the risk of infection in humans by thirty-one percent and was safe.

VOA: special.2009.09.30

The same journal also published a report in July on an experimental device called the CellScope.

VOA: special.2009.08.03

The first experimental radio broadcasts in the United States were made in the early nineteen hundreds.

VOA: special.2010.01.31

Russia's Pavlovsk Experimental Station houses one of the oldest seed and plant collections in the world.

VOA: special.2010.08.24

But the story began in the nineteen forties with the X series of experimental aircraft.

VOA: special.2010.07.07

Last month,researchers reported that an experimental drug improved survival in a study of melanoma patients.

VOA: special.2010.07.06

Experts said there was still no experimental evidence to prove that the drop in crime was a direct result of efforts to clean up city neighborhoods.

VOA: special.2009.03.03

Fringe festivals celebrate all kinds of art in many exciting, unusual and experimental forms.

VOA: special.2009.08.05

These experimental AIDS vaccines are the first from Africa to reach testing in people.

VOA: special.2009.07.29

There are now more than fifty experimental vaccines in existence.

VOA: special.2010.04.20