2017 Outbreak of Ebola Virus Disease in Northern Democratic Republic of Congo

被引:16
作者
Nsio, Justus [1 ]
Kapetshi, Jimmy [2 ]
Makiala, Sheila [2 ]
Raymond, Frederic [4 ]
Tshapenda, Gaston [1 ]
Boucher, Nancy [4 ]
Corbeil, Jacques [4 ]
Okitandjate, Antoine [1 ]
Mbuyi, Gisele [1 ]
Kiyele, Musa [1 ]
Mondonge, Vital [3 ]
Kikoo, Marie Jose [3 ]
Van Herp, Michel [6 ]
Barboza, Philippe [5 ]
Petrucci, Roberta [6 ]
Benedetti, Guido [7 ]
Formenty, Pierre [5 ]
Muzinga, Baby Muyembe [2 ]
Kalenga, Oly Ilunga [1 ]
Ahuka, Steve [2 ]
Fausther-Bovendo, Hugues [4 ]
Ilunga, Benoit Kebela [1 ]
Kobinger, Gary P. [4 ]
Muyembe, Jean-Jacques T. [2 ]
机构
[1] Minist Hlth, Kinshasa, DEM REP CONGO
[2] Inst Natl Rech Biomed, Kinshasa, DEM REP CONGO
[3] WHO, Kinshasa, DEM REP CONGO
[4] Univ Laval, Quebec City, PQ, Canada
[5] WHO, Geneva, Switzerland
[6] MSF, Geneva, Switzerland
[7] MSF, Operat Ctr Brussels, Med Dept, Luxembourg, Luxembourg
关键词
Ebola virus; outbreak; virus sequence; DIAGNOSIS;
D O I
10.1093/infdis/jiz107
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Background. In 2017, the Democratic Republic of the Congo (DRC) recorded its eighth Ebola virus disease (EVD) outbreak, approximately 3 years after the previous outbreak. Methods. Suspect cases of EVD were identified on the basis of clinical and epidemiological information. Reverse transcription-polymerase chain reaction (RT-PCR) analysis or serological testing was used to confirm Ebola virus infection in suspected cases. The causative virus was later sequenced from a RT-PCR-positive individual and assessed using phylogenetic analysis. Results. Three probable and 5 laboratory-confirmed cases of EVD were recorded between 27 March and 1 July 2017 in the DRC. Fifty percent of cases died from the infection. EVD cases were detected in 4 separate areas, resulting in > 270 contacts monitored. The complete genome of the causative agent, a variant from the Zaireebolavirus species, denoted Ebola virus Muyembe, was obtained using next-generation sequencing. This variant is genetically closest, with 98.73% homology, to the Ebola virus Mayinga variant isolated from the first DRC outbreaks in 1976-1977. Conclusion. A single spillover event into the human population is responsible for this DRC outbreak. Human-to-human transmission resulted in limited dissemination of the causative agent, a novel Ebola virus variant closely related to the initial Mayinga variant isolated in 1976-1977 in the DRC.
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页码:701 / 706
页数:6
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World Health Organization, 2018, 17 WHO