title: Controlling the last known cluster of Ebola virus disease - Liberia, January-February 2015.
abstract: As one of the three West African countries highly affected by the 2014-2015 Ebola virus disease (Ebola) epidemic, Liberia reported approximately 10,000 cases. The Ebola epidemic in Liberia was marked by intense urban transmission, multiple community outbreaks with source cases occurring in patients coming from the urban areas, and outbreaks in health care facilities (HCFs). This report, based on data from routine case investigations and contact tracing, describes efforts to stop the last known chain of Ebola transmission in Liberia. The index patient became ill on December 29, 2014, and the last of 21 associated cases was in a patient admitted into an Ebola treatment unit (ETU) on February 18, 2015. The chain of transmission was stopped because of early detection of new cases; identification, monitoring, and support of contacts in acceptable settings; effective triage within the health care system; and rapid isolation of symptomatic contacts. In addition, a "sector" approach, which divided Montserrado County into geographic units, facilitated the ability of response teams to rapidly respond to community needs. In the final stages of the outbreak, intensive coordination among partners and engagement of community leaders were needed to stop transmission in densely populated Montserrado County. A companion report describes the efforts to enhance infection prevention and control efforts in HCFs. After February 19, no additional clusters of Ebola cases have been detected in Liberia. On May 9, the World Health Organization declared the end of the Ebola outbreak in Liberia.
authors.forename: Tolbert
authors.initials: T
authors.lastname: Nyenswah
authors.forename: Mosoka
authors.initials: M
authors.lastname: Fallah
authors.forename: Sonpon
authors.initials: S
authors.lastname: Sieh
authors.forename: Karsor
authors.initials: K
authors.lastname: Kollie
authors.forename: Moses
authors.initials: M
authors.lastname: Badio
authors.forename: Alvin
authors.initials: A
authors.lastname: Gray
authors.forename: Priscilla
authors.initials: P
authors.lastname: Dilah
authors.forename: Marnijina
authors.initials: M
authors.lastname: Shannon
authors.forename: Stanley
authors.initials: S
authors.lastname: Duwor
authors.forename: Chikwe
authors.initials: C
authors.lastname: Ihekweazu
authors.forename: Thierry
authors.initials: T
authors.lastname: Cordier-Lassalle
authors.forename: Thierry
authors.initials: T
authors.lastname: Cordier-Lasalle
authors.forename: Shivam A
authors.initials: SA
authors.lastname: Shinde
authors.forename: Esther
authors.initials: E
authors.lastname: Hamblion
authors.forename: Gloria
authors.initials: G
authors.lastname: Davies-Wayne
authors.forename: Murugan
authors.initials: M
authors.lastname: Ratnesh
authors.forename: Christopher
authors.initials: C
authors.lastname: Dye
authors.forename: Jonathan S
authors.initials: JS
authors.lastname: Yoder
authors.forename: Peter
authors.initials: P
authors.lastname: McElroy
authors.forename: Brooke
authors.initials: B
authors.lastname: Hoots
authors.forename: Athalia
authors.initials: A
authors.lastname: Christie
authors.forename: John
authors.initials: J
authors.lastname: Vertefeuille
authors.forename: Sonja J
authors.initials: SJ
authors.lastname: Olsen
authors.forename: A Scott
authors.initials: AS
authors.lastname: Laney
authors.forename: Joyce J
authors.initials: JJ
authors.lastname: Neal
authors.forename: Sirin
authors.initials: S
authors.lastname: Yaemsiri
authors.forename: Thomas R
authors.initials: TR
authors.lastname: Navin
authors.forename: Stewart
authors.initials: S
authors.lastname: Coulter
authors.forename: Paran
authors.initials: P
authors.lastname: Pordell
authors.forename: Terrence
authors.initials: T
authors.lastname: Lo
authors.forename: Carl
authors.initials: C
authors.lastname: Kinkade
authors.forename: Frank
authors.initials: F
authors.lastname: Mahoney
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D016000:Cluster Analysis; D058872:Epidemics / Q000517:prevention & control*; D005260:Female; D019142:Hemorrhagic Fever, Ebola / Q000453:epidemiology / Q000517:prevention & control*; D006801:Humans; D007988:Liberia / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D055815:Young Adult