Volume 76, Issue 2 pp. 271-278
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Rapid investigation of hepatitis A virus outbreak by single strand conformation polymorphism analysis

Vincent Mackiewicz

Corresponding Author

Vincent Mackiewicz

Centre National de Référence du Virus de l'Hépatite A, Laboratoire de Virologie, Hôpital Paul Brousse, Assistance Publique-Hôpitaux de Paris, Villejuif, France

Laboratoire de Virologie, Hôpital Paul Brousse, 12 avenue Paul Vaillant-Couturier, 94804 Villejuif, France.===Search for more papers by this author
Anne-Marie Roque-Afonso

Anne-Marie Roque-Afonso

Centre National de Référence du Virus de l'Hépatite A, Laboratoire de Virologie, Hôpital Paul Brousse, Assistance Publique-Hôpitaux de Paris, Villejuif, France

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Eric Marchadier

Eric Marchadier

Centre National de Référence du Virus de l'Hépatite A, Laboratoire de Virologie, Hôpital Paul Brousse, Assistance Publique-Hôpitaux de Paris, Villejuif, France

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Elisabeth Nicand

Elisabeth Nicand

Laboratoire de Biologie Clinique, Hôpital d'Instruction des Armées Val de Grâce, Paris, France

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Lamia Fki-Berrajah

Lamia Fki-Berrajah

Service de Biologie, Hôpital Habib Bourguiba, Sfax, Tunisie

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Elisabeth Dussaix

Elisabeth Dussaix

Centre National de Référence du Virus de l'Hépatite A, Laboratoire de Virologie, Hôpital Paul Brousse, Assistance Publique-Hôpitaux de Paris, Villejuif, France

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First published: 15 April 2005
Citations: 9

Abstract

Investigation of hepatitis A virus (HAV) outbreaks often implies nucleotide sequence analysis. As an alternative method for the identification of related strains, single strand conformation polymorphism method (SSCP) was compared to sequence analysis. Twenty-three strains from sporadic and outbreak cases were studied retrospectively. SSCP, sequence identity and phylogenetic analyses were conducted on a 267 bp fragment of the VP1-2A variable region. The results of SSCP pattern comparison and sequence identity were highly correlated (r = 0.92, P < 0.001). If SSCP showed similar patterns, the VP1-2A fragments had a high and significant probability to have a sequence identity over 99.6%. Results were concordant for outbreak strains. The only discordant result concerned a cluster of three sporadic cases evidenced by phylogenetic analysis while SSCP showed similar patterns for only two of these three cases. A prospective SSCP analysis of a recent HAV outbreak confirmed the reliability of this technique. SSCP may thus provide a rapid and cost-effective tool for preliminary investigation of HAV outbreaks, before undertaking exhaustive nucleotide sequence analysis. J. Med. Virol. 76:271–278, 2005. © 2005 Wiley-Liss, Inc.

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