Nurse struck off over affair with teen

A Sydney nurse who used Facebook to start an extra-marital affair with a "vulnerable" youth offender she cared for has been struck off.

Kelda Anne Brown had her nursing registration cancelled last month — with the option to reapply after one year — after her relationship with the 19-year-old, who had paranoid schizophrenia and suicidal tendencies, came to light.

The relationship was discovered by her husband, who alerted the authorities.

Ms Brown, then a 40-year-old