Key result
In situ hybridization using a digoxigenin-labeled DNA probe successfully detected Eastern equine encephalomyelitis virus RNA in formalin-fixed tissues, comparing favorably with virus isolation.
Why the study?
Does in situ hybridization using a specific DNA probe accurately detect EEE virus RNA in formalin-fixed tissues compared to virus isolation and serum neutralization tests?
Does in situ hybridization using a specific DNA probe accurately detect EEE virus RNA in formalin-fixed tissues compared to virus isolation and serum neutralization tests?
In situ hybridization using a specific DNA probe is a viable technique for diagnosing EEE virus infection in formalin-fixed tissues when fresh tissues are unavailable.
Answers are grounded in this paper and cite their sources.
Supports ISH feasibility for EEE detection in fixed tissues when fresh samples unavailable; leaves open prospective validation.
Eastern equine encephalomyelitis (F.EE) virus was detected in infected formalin-fixed horse and emu tissues and in infected chicken embryo fibroblasts. Results of in situ hybridization using a digoxigenin-labeled 40-base DNA probe complementary to a conserved region of the EEE virus RNA compared favorably with results of both virus isolation and serum neutralization tests. This technique may be useful for diagnosis of EEE virus infection in various animal species, especially when fresh tissues are not available for analysis, and also will provide a means for studying the involvement of alphaviruses in pathogenesis studies.
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Gregory et al. (1996) studied Eastern Equine Encephalomyelitis (EEE) virus infection. DNA in situ hybridization using a digoxigenin-labeled 40-base DNA probe vs. Virus isolation and serum neutralization tests was evaluated on Detection of EEE virus RNA. In situ hybridization using a digoxigenin-labeled DNA probe successfully detected Eastern equine encephalomyelitis virus RNA in formalin-fixed tissues, comparing favorably with virus isolation.
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