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Product USA. U

PATENT ASSIGNEE'S COUNTRY USA
UPDATE 11.99
PATENT ASSIGNEE USDA
PATENT CLAIMS Vaccine comprising pharma carrier &
- Attenuated virus selected from the group consisting of atte
nuated ATCC VR-2535,2536 & 2537, wherein said virus is
characterized by lower infectivity after > 84 serial passages
than corresponding wild type strain
PATENT PHOTOCOPY Available on request

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