The gel contains tenofovir. This is a common anti-retroviral drug used to treat people with HIV, the virus that causes AIDS.

VOA: special.2010.07.21

This idea developed long ago in British common law to define the responsibility of teachers toward their students.

VOA: special.2009.07.09

The most common seasonal flu virus found in the United States this year is type A(H1N1).

VOA: special.2009.03.04

In fact,this is the single most common distinguishing characteristic of an American prisoner -- illiteracy.

VOA: special.2009.04.27

This is the most common cause of an unusual,or abnormal, heartbeat in older adults.

VOA: special.2009.09.22

This effect called facial flushing is a common reaction to alcohol among East Asians.

VOA: special.2009.05.13

A common sound in the nineteen sixties. But this was not just another launch.

VOA: special.2009.07.15

This is the most common cause of abnormal heartbeat in older adults.

VOA: special.2009.08.12

During this period, staghorns were the most common coral in the Caribbean.

VOA: special.2010.08.10

And this design reduced feedback, a noise problem common with acoustic guitars.

VOA: special.2009.09.27

The more common name for this disorder is hoarseness.

VOA: special.2009.09.02

This was common during the Civil War.

VOA: special.2010.07.25

"We're at a point in time when we think we have a real opportunity because with the signing of this joint declaration, the parties are coming together and saying that we share a common commitment to address the situation and to offer children better hope for the future through education."

VOA: special.2010.10.26

"The common thought until very recently was that this is a disease only of wealthy women and wealthy countries."

VOA: standard.2010.02.02