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© Research
Publication : Journal of virological methods

Development of a TaqMan RT-PCR assay without RNA extraction step for the detection and quantification of African Chikungunya viruses

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Journal of virological methods - 15 Dec 2004

Pastorino B, Bessaud M, Grandadam M, Murri S, Tolou HJ, Peyrefitte CN

Link to Pubmed [PMID] – 15664052

J. Virol. Methods 2005 Mar;124(1-2):65-71

Chikungunya virus (CHIKV), a member of the alphavirus genus, is of considerable public health concern in Southeast Asian and African countries. However, despite serological evidence, the diagnosis of this arthropod-borne human disease is confirmed infrequently and needs to be improved. In fact, illness caused by CHIKV can be confused with diseases such as dengue or yellow fever, based on the similarity of the symptoms, and laboratory confirmation of suspected cases is required to launch control measures during an epidemic. Moreover, no quantitative molecular tool is described to study CHIKV replication or detection in clinical samples and cell culture supernatants. In this study, a specific and sensitive CHIKV one-step TaqMan RT-PCR assay was developed as a tool for the diagnosis of African CHIKV as well as a rapid indicator of active infection by quantifying viral load. This study also showed that a simple heat viral RNA release during the reverse transcription step constituted an alternative to the conventional RNA extraction method.

http://www.ncbi.nlm.nih.gov/pubmed/15664052