In clinics, they had no corresponding neurological symptoms or signs.

临床上缺乏相关的神经系统症状与体征。

youdao

There were no symptoms or signs of vertigo on head-turning maneuvers.

在转头动作时没有眩晕的症状和体征。

youdao

There were 43 cases (76.8%) complicated with allergic symptoms or signs in other system.

合并有其他系统过敏症状体征者43例（ 76。 8% ）。

youdao

The signs or symptoms of MS are not always the same.

VOA: special.2009.01.06

An NFL spokesman said the request wasn't made to its medical committees and that its own policy adopted in 2009 states that a player who suffers a concussion shouldn't return to play or practice on the same day if he shows any signs or symptoms of a concussion.

WSJ: Tougher Rules Advised for Athletes After Concussion

Although thermal scanners used in airports may detect travelers with symptoms, they are not effective since people exposed to an infectious disease could travel without any signs or symptoms and yet still be infectious.

CNN: Commentary: Flu and your health on a plane

Some carriers can pass Salmonella infection without having signs or symptoms of the disease.

CNN: Salmonella infection