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J Med Primatol. 2011 Aug;40(4):233-43. doi: 10.1111/j.1600-0684.2011.00485.x.

Reactivation of latent tuberculosis in rhesus macaques by coinfection with simian immunodeficiency virus.

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1
Divisions of Bacteriology & Parasitology, Tulane National Primate Research Center, Covington, LA 70433, USA.

Abstract

BACKGROUND:

Tuberculosis (TB) and AIDS together present a devastating public health challenge. Over 3 million deaths every year are attributed to these twin epidemics. Annually, ∼11 million people are coinfected with HIV and Mycobacterium tuberculosis (Mtb). AIDS is thought to alter the spontaneous rate of latent TB reactivation.

METHODOLOGY:

Macaques are excellent models of both TB and AIDS. Therefore, it is conceivable that they can also be used to model coinfection. Using clinical, pathological, and microbiological data, we addressed whether latent TB infection in rhesus macaques can be reactivated by infection with simian immunodeficiency virus (SIV).

RESULTS:

A low-dose aerosol infection of rhesus macaques with Mtb caused latent, asymptomatic TB infection. Infection of macaques exhibiting latent TB with a rhesus-specific strain of SIV significantly reactivated TB.

CONCLUSIONS:

Rhesus macaques are excellent model of TB/AIDS coinfection and can be used to study the phenomena of TB latency and reactivation.

PMID:
21781131
PMCID:
PMC3227019
DOI:
10.1111/j.1600-0684.2011.00485.x
[Indexed for MEDLINE]
Free PMC Article

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