Yellow or brown areas shaped like the letter V on leaves may be a sign of black rot infection.

VOA: special.2009.03.03

Researchers say they have found a way to extend the storage life of a drug used to treat H.I.V.

VOA: special.2010.05.24

In Kenya,a project aims to educate girls about H.I.V.prevention while helping them stay in school during their monthly periods.

VOA: special.2009.03.16

Also in Kenya, a video game is being tested as another way to teach young people to avoid H.I.V.

VOA: special.2009.03.16

That way,H.I.V.-infected women could have plenty of time to get the pouch from a health care provider early in their pregnancy.

VOA: special.2010.05.24

He noted in a V-O-A broadcast in Nineteen-Ninety that blacks are singing in opera houses all over America.

VOA: special.2010.03.07

And a program in Peru sends text messages to patients with H.I.V., reminding them to take their medicines.

VOA: special.2010.05.03

"I think people who watch T.V. get a false sense of what happens in real trials."

VOA: special.2009.08.31

That year, an observatory official,V.M.Slipher, offered a young man a job working with the new telescope.

VOA: special.2010.07.11

On March thirteenth, Clyde Tombaugh and V.M Slipher announced the discovery of a new planet.

VOA: special.2010.07.11

AIDS researchers say they still have much work to do on a vaccine against H.I.V.

VOA: special.2009.09.30

In addition,almost half a million people who were infected with tuberculosis and with H.I.V.also died.

VOA: special.2009.03.25

Called V-2 rockets, the German weapons carried a ton of explosives three hundred twenty kilometers.

VOA: special.2009.06.10

Scientists have believed that S.I.V.did not cause a similar immune system problem for primates.

VOA: special.2009.09.08