This month,the W.H.O.joined with other groups to announce a new effort against malaria.

VOA: special.2009.05.26

The new formulation is known as B.O.P.V., or bivalent oral polio vaccine.

VOA: special.2010.01.18

Beth OLeary is a professor at New Mexico State University.

VOA: special.2010.03.02

Still,W.H.O.officials continue to report new cases across the world.

VOA: special.2009.07.14

C.O.P.D.is a new name for emphysema and chronic bronchitis.

VOA: special.2009.06.23