European Union health ministers pledged to pursue an effective and safe vaccine without delay.

VOA: standard.2009.04.30

"We know this is a shared responsibility and in the days ahead we will work with the international community and our Chinese colleagues to fashion an effective and appropriate response."

VOA: standard.2010.05.25

Many months would pass before the Union could build up an effective naval force.

VOA: special.2009.09.10

He believed the music was an easy and effective way to spread his message.

VOA: special.2009.10.14

The country has not had an effective government for almost twenty years.

VOA: special.2009.04.25

Grant was not an effective political leader.

VOA: special.2010.03.04

Over at competitor General Electric, actor Ronald Reagan -- later the fortieth president of the United States -- and often referred to as the Great Communicator, was for many years an effective commercial spokesman every week on the GE Theater.

VOA: special.2011.07.21

Meanwhile,expedited efforts are going forward on several continents to develop an effective vaccine for the new strain of influenza.

VOA: standard.2009.04.30

Economists have long considered government spending, especially on infrastructure, to be an effective tool for revitalizing a stagnating economy.

VOA: standard.2009.10.16

Kaczynski has run an effective advertising campaign, and may well have gained ground over the last two weeks.

VOA: standard.2010.07.03

"We need to ensure improved security conditions in the south in order to carry out an effective counter-narcotics strategy in Helmand and Kandahar provinces,".

VOA: standard.2009.03.27

"Having an effective state and a modern economy, which requires toiling more than a year."

VOA: standard.2010.06.24

"That defendant challenges in an appellate court and says I didn't have effective counsel.

VOA: standard.2009.05.22

It is the first step toward an effective agreement on climate change,"

VOA: standard.2009.11.27

Acupuncture maybe an effective treatment against depression in pregnant women.

VOA: standard.2010.03.03

The visa for James Elder, an Australian,has been canceled effective Monday, but officials say after an appeal from the United Nations he will be allowed to stay there under September 21.

VOA: standard.2009.09.06