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

VOA: special.2009.03.04

They may struggle to hide them. Probably the most common early sign is short-term memory loss.

VOA: special.2011.02.08

Experts at the Centers for Disease Control and Prevention say hospital treatment for likely H1N1 is most common among children up to four years old.

VOA: special.2009.11.24

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

VOA: special.2009.04.27

But the most common cause is long-term smoking or years of breathing other people's smoke.

VOA: special.2010.06.23

The most common answer historians give is that the name came from Samuel Wilson.

VOA: special.2009.09.25

He says one of the most common methods for suppressing weeds is dense planting.

VOA: special.2009.05.26

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

VOA: special.2009.09.22

The most common form of arthritis, osteoarthritis,is more likely to affect older people.

VOA: special.2010.05.19

It is currently the most common surgical operation among women of reproductive age.

VOA: special.2009.11.24

It says the disease is most common in Caucasian women over age fifty.

VOA: special.2010.08.31

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

VOA: special.2009.08.12

But weather experts say they are most common is the United States.

VOA: special.2009.06.09

The most common cause is pollen from flowering plants and trees.

VOA: special.2010.12.21

Down syndrome is the most common genetic cause of mental retardation.

VOA: special.2009.09.09

Probably the most common early sign is short-term memory loss.

VOA: special.2009.09.15

The most common one is the petit jury.

VOA: special.2009.08.31

He says in most areas where fistula is common, the capacity for treatment cannot meet demand.

VOA: standard.2009.12.23

The most common cause of COPD is long-term smoking or years of exposure to second-hand smoke.

VOA: standard.2010.06.21

Alzheimer's is the most common ," puzzles form of dementia.

VOA: standard.2009.12.04