Viral strain HIV-2UC9429 has been shown to be infectious and pathogenic in baboons (Papio species), producing an AIDS syndrome with classical depletion of CD4+ lymphocytes. This virus will be useful for vaccine challenge and therapeutic evaluations in the baboon, as the immunologic physiology of the baboon is very close to the human. Before it can be used in this way, the virus must be titrated in vivo to determine the minimal infectious dose in this species. Six baboons were inoculated intravenously in pairs at doses of 10, 1 and 0.1 TCID. All baboons became infected, even at the lowest dosage. Plans are underway to expand this study to test lower dilutions of virus to determine the minimal infectious dose, before vaccine studies are begun. FUNDING NIH grant RR00166 and NIAID SVEU contract.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Primate Research Center Grants (P51)
Project #
5P51RR000166-39
Application #
6316756
Study Section
Project Start
1976-06-01
Project End
2002-04-30
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
39
Fiscal Year
2000
Total Cost
$264,800
Indirect Cost
Name
University of Washington
Department
Type
DUNS #
135646524
City
Seattle
State
WA
Country
United States
Zip Code
98195
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