81.   When new viruses come along, your program needs those new signatures to find them.

82.   When a new virus like Melissa appears, it could slip past any antivirus program that has not been updated to catch it.

83.   When it locates a potential new virus, it makes a copy of the file, and that file is fed into an automated analysis system.

84.   With its tolerance, free spirit and love of the outlandish, San Francisco was a sexual carnival that created laboratory-like conditions for breeding a new virus.

85.   Within two months, hundreds of monkeys were dead, and the world had a new virus.

86.   With scientists still working to understand such interactions, it remains unclear how readily new viruses may arise by these means.

87.   You can get news on new viruses and older viruses and what to do about them on the Web sites of two major anti-virus software makers.

88.   A genetic analysis of the new virus showed that it was an exact match of the WSN flu virus, he said.

89.   A study appearing Friday in the journal Science said the virus has been named Nipah and researchers said it is closely related to another new virus called Hendra.

90.   A study appearing tomorrow in the journal Science said the virus has been named Nipah and researchers said it is closely related to another new virus called Hendra.