21.   She infected one group with an avian herpes virus, while giving an uninfected group a diet high in cholesterol.

22.   Some drugs are effective against herpes viruses.

23.   Some of the patients turned out to be infected with the herpes virus.

24.   Squirrel monkeys, for instance, carry a herpes virus that is harmless to them but fatal to tamarins, another South American species.

25.   Tests showed that a new type of herpes virus was probably the culprit.

26.   The degenerative disease multiple sclerosis may be linked to the herpes virus, researchers said today.

27.   The fatal virus belongs to a diverse group of herpes viruses that cause disease in people and animals.

28.   The herpes B virus is carried by rhesus macaque monkeys.

29.   The researchers chose the herpes virus because it can be tested in laboratory animals.

30.   The second gene would be taken from herpes virus.