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Volume 19, Number 1—January 2013

Dispatch

Hepatitis E Virus Genotype 4 Outbreak, Italy, 2011

Anna R. Garbuglia, Paola Scognamiglio, Nicola Petrosillo, Claudio Maria Mastroianni, Pasquale Sordillo, Daniele Gentile, Patrizia La Scala, Enrico Girardi, and Maria R. CapobianchiComments to Author 
Author affiliations: Lazzaro Spallanzani National Institute for Infectious Diseases, Rome, Italy (A.R. Garbuglia, P. Scognamiglio, N. Petrosillo, P. La Scala, E. Girardi, M.R. Capobianchi); Sapienza University, Rome (C.M. Mastroianni); Santa Maria Goretti Hospital, Latina, Italy (C.M. Mastroianni); Tor Vergata University Polyclinic, Rome (P. Sordillo); and Local Health Unit ASL Roma H, Rome (D. Gentile)

Main Article

Figure 2

Phylogenetic trees based on partial open reading frame (ORF) sequences of the hepatitis E virus monophyletic strain involved in an outbreak in Lazio, Italy, March–April 2011. A) ORF1, 172 nt. Sequences from the outbreak in Italy could not be submitted to GenBank, being <200 nt long; they are available on request from the authors. B) ORF2, 411 nt. The ORF 2 sequence (identical in all 5 patients) described in this panel was submitted to GenBank (accession no. JX401928). Neighbor-joining trees w

Figure 2. . . Phylogenetic trees based on partial open reading frame (ORF) sequences of the hepatitis E virus monophyletic strain involved in an outbreak in Lazio, Italy, March–April 2011. A) ORF1, 172 nt. Sequences from the outbreak in Italy could not be submitted to GenBank, being <200 nt long; they are available on request from the authors. B) ORF2, 411 nt. The ORF 2 sequence (identical in all 5 patients) described in this panel was submitted to GenBank (accession no. JX401928). Neighbor-joining trees were built by using MEGA5.1 software (www.megasoftware.net), applying the Jukes-Cantor p-distance model of nucleotide substitution. Bootstrap values were determined on 1,000 resamplings of the data set; bootstrap values >80 are shown. Reference strains from GenBank are also included in the trees. Reference viral strains are identified by GenBank accession number, source, country of origin, and respective genotype and subtype. The avian strain AY535004 was used as outgroup. Triangles indicate sequences recovered during the outbreak in Italy. Scale bars represent nucleotide substitutions per site.

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