title: Reemergence of Dengue in Southern Texas, 2013.
abstract: During a dengue epidemic in northern Mexico, enhanced surveillance identified 53 laboratory-positive cases in southern Texas; 26 (49%) patients acquired the infection locally, and 29 (55%) were hospitalized. Of 83 patient specimens that were initially IgM negative according to ELISA performed at a commercial laboratory, 14 (17%) were dengue virus positive by real-time reverse transcription PCR performed at the Centers for Disease Control and Prevention. Dengue virus types 1 and 3 were identified, and molecular phylogenetic analysis demonstrated close identity with viruses that had recently circulated in Mexico and Central America. Of 51 household members of 22 dengue case-patients who participated in household investigations, 6 (12%) had been recently infected with a dengue virus and reported no recent travel, suggesting intrahousehold transmission. One household member reported having a recent illness consistent with dengue. This outbreak reinforces emergence of dengue in southern Texas, particularly when incidence is high in northern Mexico.
authors.forename: Dana L
authors.initials: DL
authors.lastname: Thomas
authors.forename: Gilberto A
authors.initials: GA
authors.lastname: Santiago
authors.forename: Roman
authors.initials: R
authors.lastname: Abeyta
authors.forename: Steven
authors.initials: S
authors.lastname: Hinojosa
authors.forename: Brenda
authors.initials: B
authors.lastname: Torres-Velasquez
authors.forename: Jessica K
authors.initials: JK
authors.lastname: Adam
authors.forename: Nicole
authors.initials: N
authors.lastname: Evert
authors.forename: Elba
authors.initials: E
authors.lastname: Caraballo
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Hunsperger
authors.forename: Jorge L
authors.initials: JL
authors.lastname: Muñoz-Jordán
authors.forename: Brian
authors.initials: B
authors.lastname: Smith
authors.forename: Alison
authors.initials: A
authors.lastname: Banicki
authors.forename: Kay M
authors.initials: KM
authors.lastname: Tomashek
authors.forename: Linda
authors.initials: L
authors.lastname: Gaul
authors.forename: Tyler M
authors.initials: TM
authors.lastname: Sharp
mesh_terms: D021821:Communicable Diseases, Emerging / Q000453:epidemiology* / Q000266:history / Q000635:transmission / Q000821:virology*; D003715:Dengue / Q000453:epidemiology* / Q000266:history / Q000821:virology*; D003716:Dengue Virus / Q000145:classification / Q000235:genetics*; D005191:Family Characteristics; D005260:Female; D005814:Genes, Viral; D049674:History, 21st Century; D006801:Humans; D008297:Male; D008800:Mexico; D010802:Phylogeny; D012307:Risk Factors; D013781:Texas / Q000453:epidemiology; D014195:Travel
keywords: Dengue; Texas; United States; dengue virus; outbreak; reemergence; vector-borne infections; viruses