1.   A quick comparison showed enough similarities to other herpes viruses to determine that it was part of that viral family.

2.   We subsequently applied a technique based on the polymerase chain reaction to detect herpes B virus DNA in cerebrospinal fluid.

3.   Unequivocal discrimination of herpes B virus DNA was achieved by enzymatic digestion of the B virus DNA amplimer with SacII restriction endonuclease.

4.   The results were confirmed by hybridisation with an internal oligonucleotide probe specific for herpes B virus.

5.   In the case of the rare hooded crane, the introduction of a foreign herpes virus has threatened the remaining wild population.

6.   His main concern is that although eight million people in the UK have the herpes virus, only half of them realise they are infectious.

7.   At the hospital, X-rays showed she also had tumors caused by a herpes virus.

8.   A significant minority of cases follow infection by two herpes viruses, cytomegalovirus or Epstein-Barr virus, the cause of infectious mononucleosis.

9.   But the herpes virus infecting the elephants bears little resemblance to previously known forms, the researchers said.