Nevertheless, the Centers for Disease Control and Prevention had warned against exchanging saliva with members of groups perceived to be at high risk for AIDS.

Although neither the Centers for Disease Control nor the egg board specifically warns people not to eat raw eggs, consumers may want to think twice about doing so.

Belgium's Centre for Equal Opportunities warned against "over-reaction and hyper political correctness".

The bleak outlook on British high streets will be replicated across the UK economy, the Centre for Economics and Business Research warns today.

Public prosecutors investigated, but the Centre for Equal Opportunities and Opposition to Racism warned against political over-correctness.

But Centers for Disease Control officials warn that for all their epidemiological value, nasal swabs have little or no value in diagnosing anthrax in patients.

But the Centers for Disease Control and Prevention has also warned that "current food and beverage marketing practices put children's long-term health at risk."

The Centre for Social Justice (CSJ) warns that a worrying dynamic has developed in which courts and prisons are effectively being used to "parent children".

The Centers for Disease Control warns that "of all addictive behaviors, cigarette smoking is the one most likely to become established during adolescence".