Emerging Infectious Disease ISSN: 1080-6059

Nosocomial Outbreak of Crimean-Congo Hemorrhagic Fever, Sudan

Imadeldin E. Aradaib, Bobbie R. Erickson, Mubarak E. Mustafa, Marina L. Khristova, Nageeb S. Saeed, Rehab M. Elageb, and Stuart T. Nichol

Author affiliations: The National Ribat University, Khartoum, Sudan (I.E. Aradaib); University of Khartoum, Khartoum (I.E. Aradaib); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (B.R. Erickson, M.L. Khristova, S.T. Nichol); Central Public Health Laboratory, Khartoum (M.E. Mustafa); Juba University, Khartoum (M.E. Mustafa); Federal Ministry of Health, Khartoum (N.S. Saeed); National Medical Laboratory, Khartoum (N.S. Saeed, R.M. Elageb)

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Figure

Phylogenetic relationship of Crimean-Congo hemorrhagic fever virus (CCHFV) full-length small (S) segments. Phylogenetic analysis used 47 full-length CCHFV S segments available in GenBank. GARLI (v0.96b8) (9) with default settings was used to generate a maximum-likelihood tree with bootstrap support values from 1,000 replicates. From the analysis, a 50% majority-rule tree was constructed. Virus strains from Sudan patients 1, 2, 3, 6, 7, 8, and 9 (GenBank accession no. GQ862371) were identical, an

Figure. Phylogenetic relationship of Crimean-Congo hemorrhagic fever virus (CCHFV) full-length small (S) segments. Phylogenetic analysis used 47 full-length CCHFV S segments available in GenBank. GARLI (v0.96b8) (9) with default settings was used to generate a maximum-likelihood tree with bootstrap support values from 1,000 replicates. From the analysis, a 50% majority-rule tree was constructed. Virus strains from Sudan patients 1, 2, 3, 6, 7, 8, and 9 (GenBank accession no. GQ862371) were identical, and the virus sequence from patient 4 (GenBank accession no. GQ862372) differed by 1 nt. Each strain is listed by its location, strain name, and year of isolation, when available. Boldface indicates strains from Sudan; braces indicate previously described genetic lineages (8).

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