{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,17]],"date-time":"2026-10-17T00:04:17Z","timestamp":1792195457493,"version":"4.4.0"},"reference-count":60,"publisher":"American Society for Microbiology","issue":"13","license":[{"start":{"date-parts":[[2006,7,1]],"date-time":"2006-07-01T00:00:00Z","timestamp":1151712000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Virol"],"published-print":{"date-parts":[[2006,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>In March 2005, the Centers for Disease Control and Prevention (CDC) investigated a large hemorrhagic fever (HF) outbreak in Uige Province in northern Angola, West Africa. In total, 15 initial specimens were sent to CDC, Atlanta, Ga., for testing for viruses associated with viral HFs known to be present in West Africa, including ebolavirus. Marburgvirus was also included despite the fact that the origins of all earlier outbreaks were linked directly to East Africa. Surprisingly, marburgvirus was confirmed (12 of 15 specimens) as the cause of the outbreak. The outbreak likely began in October 2004 and ended in July 2005, and it included 252 cases and 227 (90%) fatalities (report from the Ministry of Health, Republic of Angola, 2005), making it the largest Marburg HF outbreak on record. A real-time quantitative reverse transcription-PCR assay utilized and adapted during the outbreak proved to be highly sensitive and sufficiently robust for field use. Partial marburgvirus RNA sequence analysis revealed up to 21% nucleotide divergence among the previously characterized East African strains, with the most distinct being Ravn from Kenya (1987). The Angolan strain was less different (\u223c7%) from the main group of East African marburgviruses than one might expect given the large geographic separation. To more precisely analyze the virus genetic differences between outbreaks and among viruses within the Angola outbreak itself, a total of 16 complete virus genomes were determined, including those of the virus isolates Ravn (Kenya, 1987) and 05DRC, 07DRC, and 09DRC (Democratic Republic of Congo, 1998) and the reference Angolan virus isolate (Ang1379v). In addition, complete genome sequences were obtained from RNAs extracted from 10 clinical specimens reflecting various stages of the disease and locations within the Angolan outbreak. While the marburgviruses exhibit high overall genetic diversity (up to 22%), only 6.8% nucleotide difference was found between the West African Angolan viruses and the majority of East African viruses, suggesting that the virus reservoir species in these regions are not substantially distinct. Remarkably few nucleotide differences were found among the Angolan clinical specimens (0 to 0.07%), consistent with an outbreak scenario in which a single (or rare) introduction of virus from the reservoir species into the human population was followed by person-to-person transmission with little accumulation of mutations. This is in contrast to the 1998 to 2000 marburgvirus outbreak, where evidence of several virus genetic lineages (with up to 21% divergence) and multiple virus introductions into the human population was found.<\/jats:p>","DOI":"10.1128\/jvi.00069-06","type":"journal-article","created":{"date-parts":[[2006,6,14]],"date-time":"2006-06-14T20:21:50Z","timestamp":1150316510000},"page":"6497-6516","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":337,"title":["Marburgvirus Genomics and Association with a Large Hemorrhagic Fever Outbreak in Angola"],"prefix":"10.1128","volume":"80","author":[{"given":"Jonathan S.","family":"Towner","sequence":"first","affiliation":[{"name":"Special Pathogens Branch"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marina L.","family":"Khristova","sequence":"additional","affiliation":[{"name":"DVRD, Biotechnology Core Facility Branch"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tara K.","family":"Sealy","sequence":"additional","affiliation":[{"name":"Special Pathogens Branch"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martin J.","family":"Vincent","sequence":"additional","affiliation":[{"name":"Special Pathogens Branch"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bobbie R.","family":"Erickson","sequence":"additional","affiliation":[{"name":"Special Pathogens Branch"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Darcy A.","family":"Bawiec","sequence":"additional","affiliation":[{"name":"Special Pathogens Branch"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amy L.","family":"Hartman","sequence":"additional","affiliation":[{"name":"Special Pathogens Branch"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James A.","family":"Comer","sequence":"additional","affiliation":[{"name":"Special Pathogens Branch"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sherif R.","family":"Zaki","sequence":"additional","affiliation":[{"name":"SRP and Infectious Disease Pathology Activity"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ute","family":"Stro\u0308her","sequence":"additional","affiliation":[{"name":"Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba R3E 3R2"},{"name":"Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba R3E OW3, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Filomena","family":"Gomes da Silva","sequence":"additional","affiliation":[{"name":"Instituto Nacional de Sau\u0301de Publica, Ministro da Sau\u0301de, Repu\u0301blica de Angola, Luanda, Angola"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fernando","family":"del Castillo","sequence":"additional","affiliation":[{"name":"DVRD, NCID, and Global Aids Program, Centers for Disease Control and Prevention Atlanta, Georgia 30333"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pierre E.","family":"Rollin","sequence":"additional","affiliation":[{"name":"Special Pathogens Branch"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas G.","family":"Ksiazek","sequence":"additional","affiliation":[{"name":"Special Pathogens Branch"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stuart T.","family":"Nichol","sequence":"additional","affiliation":[{"name":"Special Pathogens Branch"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1038\/7422"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1128\/JVI.79.21.13421-13433.2005"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/0042-6822(90)90218-G"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1128\/JVI.77.14.7945-7956.2003"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.3201\/eid0912.030355"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1038\/nm0297-205"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1086\/515386"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF01322532"},{"key":"e_1_3_2_10_2","first-page":"308","volume":"54","year":"2005","unstructured":"Centers for Disease Control and Prevention. 2005. 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