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Zika and colombia

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https://www.readbyqxmd.com/read/28806479/zika-virus-disease-in-children-in-colombia-august-2015-to-may-2016
#1
Natalia Tolosa, Sarah C Tinker, Oscar Pacheco, Diana Valencia, Daniela Salas Botero, Van T Tong, Marcela Mercado, Suzanne M Gilboa, Maritza Gonzalez, Christina A Nelson, Lissethe Pardo, Carol Y Rao, Angélica Rico, Meredith Moore, Edgar Parra, Margaret A Honein, Martha L Ospina Martínez
BACKGROUND: Children are considered a potentially vulnerable population for Zika virus infection. However, data on paediatric Zika virus infection are sparse. METHODS: We analysed data from Colombia's national surveillance system during the 2015-2016 Zika virus outbreak on patients meeting the clinical case definition of Zika virus disease (ZVD) among children aged 1 month to 18 years to estimate incidence by demographic characteristics and characterize the occurrence of selected complications...
August 14, 2017: Paediatric and Perinatal Epidemiology
https://www.readbyqxmd.com/read/28803069/estimating-the-reproductive-number-total-outbreak-size-and-reporting-rates-for-zika-epidemics-in-south-and-central-america
#2
Deborah P Shutt, Carrie A Manore, Stephen Pankavich, Aaron T Porter, Sara Y Del Valle
As South and Central American countries prepare for increased birth defects from Zika virus outbreaks and plan for mitigation strategies to minimize ongoing and future outbreaks, understanding important characteristics of Zika outbreaks and how they vary across regions is a challenging and important problem. We developed a mathematical model for the 2015/2016 Zika virus outbreak dynamics in Colombia, El Salvador, and Suriname. We fit the model to publicly available data provided by the Pan American Health Organization, using Approximate Bayesian Computation to estimate parameter distributions and provide uncertainty quantification...
July 13, 2017: Epidemics
https://www.readbyqxmd.com/read/28767730/community-context-and-sub-neighborhood-scale-detail-to-explain-dengue-chikungunya-and-zika-patterns-in-cali-colombia
#3
Amy R Krystosik, Andrew Curtis, Paola Buritica, Jayakrishnan Ajayakumar, Robert Squires, Diana Dávalos, Robinson Pacheco, Madhav P Bhatta, Mark A James
BACKGROUND: Cali, Colombia has experienced chikungunya and Zika outbreaks and hypoendemic dengue. Studies have explained Cali's dengue patterns but lack the sub-neighborhood-scale detail investigated here. METHODS: Spatial-video geonarratives (SVG) with Ministry of Health officials and Community Health Workers were collected in hotspots, providing perspective on perceptions of why dengue, chikungunya and Zika hotspots exist, impediments to control, and social outcomes...
2017: PloS One
https://www.readbyqxmd.com/read/28750651/a-cross-sectional-survey-of-aedes-aegypti-immature-abundance-in-urban-and-rural-household-containers-in-central-colombia
#4
Hans J Overgaard, Víctor Alberto Olano, Juan Felipe Jaramillo, María Inés Matiz, Diana Sarmiento, Thor Axel Stenström, Neal Alexander
BACKGROUND: Aedes aegypti, the major vector of dengue, breeds in domestic water containers. The development of immature mosquitoes in such containers is influenced by various environmental, ecological and socioeconomic factors. Urban and rural disparities in water storage practices and water source supply may affect mosquito immature abundance and, potentially, dengue risk. We evaluated the effect of water and container characteristics on A. aegypti immature abundance in urban and rural areas...
July 27, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28724972/asymptomatic-transmission-and-the-dynamics-of-zika-infection
#5
Seyed M Moghadas, Affan Shoukat, Aquino L Espindola, Rafael S Pereira, Fatima Abdirizak, Marek Laskowski, Cecile Viboud, Gerardo Chowell
Following the 2013-14 outbreak in French Polynesia, the Zika virus (ZIKV) epidemic spread widely to many countries where Aedes Aegypti as the main transmitting vector is endemic. The lack of a second wave of ZIKV infection in most affected regions may suggest that a sufficiently high level of herd immunity was reached during the first wave. We developed an agent-based transmission model to investigate the role of asymptomatic infection on the likelihood of observing a second wave, while accounting for its relative transmissibility...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28686321/stratifying-the-potential-local-transmission-of-zika-in-municipalities-of-antioquia-colombia
#6
Juan Ospina, Doracelly Hincapie-Palacio, Jesús Ochoa, Adriana Molina, Guillermo Rúa, Dubán Pájaro, Marcela Arrubla, Rita Almanza, Marlio Paredes, Anuj Mubayi
OBJECTIVE: To stratify and understand the potential transmission processes of Zika virus in Colombia, in order to effectively address the efforts on surveillance and disease control. METHODS: We compare R0 , of Zika for municipalities based on data from the regional surveillance system of Antioquia, Colombia. The basic reproduction number (R0 ) and its 95% confidence intervals were estimated from an SIR model with implicit vector dynamics, in terms of recovered individuals in each time unit, using an approximate solution...
July 7, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28678053/raised-frequency-of-central-nervous-system-malformations-related-to-zika-virus-infection-in-two-birth-defects-surveillance-systems-in-bogot%C3%A3-and-cali-colombia
#7
Paula Hurtado-Villa, Angie K Puerto, Salomé Victoria, Gloria Gracia, Lesly Guasmayán, Patricia Arce, Gilberto Álvarez, Esperanza Blandón, Nubia Rengifo, Jorge A Holguín, Alexander Durán, Ignacio Zarante
Zika virus infection during pregnancy is now known to cause congenital microcephaly and severe brain defects. Colombia has been experiencing an epidemic wave of Zika infection, starting approximately in October 2015. Here we document the trends of microcephaly and severe CNS malformations in two major cities in Colombia from 2012 through 2016, tracking the epidemiologic curve from before through the major Zika epidemic so far. METHODS: The study included neural tube defects (anencephaly, spina bifida, encephalocele), holoprosencephaly, and hydrocephaly...
July 1, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28645459/-hotline-for-zika-virus-experience-of-a-tropical-and-travel-medicine-unit
#8
Marta Díaz-Menéndez, Fernando de la Calle-Prieto, Marta Arsuaga, Elena Trigo, Concepción Ladrón de Guevara, Pablo Barreiro, Clara Crespillo, Mar Lago
The current outbreak of Zika virus has caused great social alarm, generated in part by the lack of information in the general population. In order to provide accurate and verified information, the Tropical and Travel Medicine Unit of Hospital Carlos III-La Paz (Madrid, Spain) established a hotline for Zika virus infection. We present the data concerning the first 6 months of operation of the telephone hotline. The predominant call profile consisted of women seeking information about the risk of acquiring the disease before travelling...
June 20, 2017: Gaceta Sanitaria
https://www.readbyqxmd.com/read/28610628/case-report-microcephaly-associated-with-zika-virus-infection-colombia
#9
Salim Mattar, Carolina Ojeda, Janna Arboleda, German Arrieta, Irene Bosch, Ingrid Botia, Nelson Alvis-Guzman, Carlos Perez-Yepes, Lee Gerhke, German Montero
BACKGROUND: Recently there has been a large outbreak of Zika virus infections in Colombia, South America. The epidemic began in September 2015 and continued to April 2017, for the total number of Zika cases reported of 107,870. For those confirmed Zika cases, there were nearly 20,000 (18.5%) suspected to be pregnant women, resulting in 157 confirmed cases of microcephaly in newborns reported by their health government agency. There is a clear under-estimation of the total number of cases and in addition no prior publications have been published to demonstrate the clinical aspects of the Zika infection in Colombia...
June 13, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28594771/serial-head-and-brain-imaging-of-17-fetuses-with-confirmed-zika-virus-infection-in-colombia-south-america
#10
MULTICENTER STUDY
Miguel Parra-Saavedra, Jennita Reefhuis, Juan Pablo Piraquive, Suzanne M Gilboa, Martina L Badell, Cynthia A Moore, Marcela Mercado, Diana Valencia, Denise J Jamieson, Mauricio Beltran, Magda Sanz-Cortes, Ana Maria Rivera-Casas, Mayel Yepez, Guido Parra, Martha Ospina Martinez, Margaret A Honein
OBJECTIVE: To evaluate fetal ultrasound and magnetic resonance imaging findings among a series of pregnant women with confirmed Zika virus infection to evaluate the signs of congenital Zika syndrome with respect to timing of infection. METHODS: We conducted a retrospective case series of pregnant women referred to two perinatal clinics in Barranquilla and Ibagué, Colombia, who had findings consistent with congenital Zika syndrome and Zika virus infection confirmed in maternal, fetal, or neonatal samples...
July 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28574621/prospects-for-induction-of-cd8-t-cell-mediated-immunity-to-zika-virus-infection-by-yellow-fever-virus-vaccination
#11
K Blom, J T Sandberg, K Loré, H-G Ljunggren
No abstract text is available yet for this article.
June 2, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28566102/real-time-parameter-estimation-of-zika-outbreaks-using-model-averaging
#12
C R Sebrango-Rodríguez, D A Martínez-Bello, L Sánchez-Valdés, P J Thilakarathne, E Del Fava, P VAN DER Stuyft, A López-Quílez, Z Shkedy
Early prediction of the final size of any epidemic and in particular for Zika disease outbreaks can be useful for health authorities in order to plan the response to the outbreak. The Richards model is often been used to estimate epidemiological parameters for arboviral diseases based on the reported cumulative cases in single- and multi-wave outbreaks. However, other non-linear models can also fit the data as well. Typically, one follows the so called post selection estimation procedure, i.e., selects the best fitting model out of the set of candidate models and ignores the model uncertainty in both estimation and inference since these procedures are based on a single model...
August 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28538734/zika-virus-evolution-and-spread-in-the-americas
#13
Hayden C Metsky, Christian B Matranga, Shirlee Wohl, Stephen F Schaffner, Catherine A Freije, Sarah M Winnicki, Kendra West, James Qu, Mary Lynn Baniecki, Adrianne Gladden-Young, Aaron E Lin, Christopher H Tomkins-Tinch, Simon H Ye, Daniel J Park, Cynthia Y Luo, Kayla G Barnes, Rickey R Shah, Bridget Chak, Giselle Barbosa-Lima, Edson Delatorre, Yasmine R Vieira, Lauren M Paul, Amanda L Tan, Carolyn M Barcellona, Mario C Porcelli, Chalmers Vasquez, Andrew C Cannons, Marshall R Cone, Kelly N Hogan, Edgar W Kopp, Joshua J Anzinger, Kimberly F Garcia, Leda A Parham, Rosa M Gélvez Ramírez, Maria C Miranda Montoya, Diana P Rojas, Catherine M Brown, Scott Hennigan, Brandon Sabina, Sarah Scotland, Karthik Gangavarapu, Nathan D Grubaugh, Glenn Oliveira, Refugio Robles-Sikisaka, Andrew Rambaut, Lee Gehrke, Sandra Smole, M Elizabeth Halloran, Luis Villar, Salim Mattar, Ivette Lorenzana, Jose Cerbino-Neto, Clarissa Valim, Wim Degrave, Patricia T Bozza, Andreas Gnirke, Kristian G Andersen, Sharon Isern, Scott F Michael, Fernando A Bozza, Thiago M L Souza, Irene Bosch, Nathan L Yozwiak, Bronwyn L MacInnis, Pardis C Sabeti
Although the recent Zika virus (ZIKV) epidemic in the Americas and its link to birth defects have attracted a great deal of attention, much remains unknown about ZIKV disease epidemiology and ZIKV evolution, in part owing to a lack of genomic data. Here we address this gap in knowledge by using multiple sequencing approaches to generate 110 ZIKV genomes from clinical and mosquito samples from 10 countries and territories, greatly expanding the observed viral genetic diversity from this outbreak. We analysed the timing and patterns of introductions into distinct geographic regions; our phylogenetic evidence suggests rapid expansion of the outbreak in Brazil and multiple introductions of outbreak strains into Puerto Rico, Honduras, Colombia, other Caribbean islands, and the continental United States...
June 15, 2017: Nature
https://www.readbyqxmd.com/read/28487212/mapping-the-ecoepidemiology-of-zika-virus-infection-in-urban-and-rural-areas-of-pereira-risaralda-colombia-2015-2016-implications-for-public-health-and-travel-medicine
#14
Alfonso J Rodriguez-Morales, Pablo Ruiz, Javier Tabares, Carlos Augusto Ossa, Maria Camila Yepes-Echeverry, Valeria Ramirez-Jaramillo, Maria Leonor Galindo-Marquez, Carlos Julian García-Loaiza, Juan Alejandro Sabogal-Roman, Esteban Parra-Valencia, Guillermo J Lagos-Grisales, Carlos O Lozada-Riascos, Cornelis A de Pijper, Martin P Grobusch
OBJECTIVE: Geographical information systems (GIS) have been demonstrated earlier to be of great use to inform public health action against vector-borne infectious diseases. METHODS: Using surveillance data on the ongoing ZIKV outbreak from Pereira, Colombia (2015-2016), we estimated incidence rates (cases/100,000 population), and developed maps correlating with the ecoepidemiology of the area. RESULTS: Up to October 8, 2016, 439 cases of ZIKV were reported in Pereira (93 cases/100,000 pop...
May 6, 2017: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/28418539/ophthalmic-manifestations-of-congenital-zika-syndrome-in-colombia-and-venezuela
#15
MULTICENTER STUDY
Juan B Yepez, Felipe A Murati, Michele Pettito, Carlos F Peñaranda, Jazmin de Yepez, Gladys Maestre, J Fernando Arevalo
Importance: The ocular manifestations and sequelae of Zika virus infection are not well known. Recently, the World Health Organization changed the declaration of Zika as a public health emergency and designated the viral outbreak and related microcephaly clusters as a long-term program of work. This change indicates the urgent need to evaluate and document ophthalmic manifestations in patients for timely management of this disease. In addition, confirmation whether the public health problem in Brazil extends to other regions in South America is needed...
May 1, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28348794/zika-and-chikungunya-virus-co-infection-in-a-traveller-returning-from-colombia-2016-virus-isolation-and-genetic-analysis
#16
Kartikeya Cherabuddi, Nicole M Iovine, Kairav Shah, Sarah K White, Taylor Paisie, Marco Salemi, J Glenn Morris, John A Lednicky
INTRODUCTION: Zikavirus (ZIKV) and Chikungunyavirus (CHIKV) can share the same mosquito vector, and co-infections by these viruses can occur in humans. While infections with these viruses share commonalities, CHIKV is unique in causing arthritis and arthralgias that may persist for a year or more. These infections are commonly diagnosed by RT-PCR-based methods during the acute phase of infection. Even with the high specificity and sensitivity characteristic of PCR, false negatives can occur, highlighting the need for additional diagnostic methods for confirmation...
December 2016: JMM Case Reports
https://www.readbyqxmd.com/read/28344900/temporal-patterns-and-geographic-heterogeneity-of-zika-virus-zikv-outbreaks-in-french-polynesia-and-central-america
#17
Ying-Hen Hsieh
BACKGROUND: Zika virus (ZIKV) transmission has been reported in 67 countries/territories in the Oceania region and the Americas since 2015, prompting the World Health Organization (WHO) to declare ZIKV as a Public Health Emergency of International Concern in February 2016, due to its strong association with medical complications such as microcephaly and Guillain-Barré Syndrome (GBS). However, a substantial gap in knowledge still exists regarding differing temporal pattern and potential of transmission of ZIKV in different regions of the world...
2017: PeerJ
https://www.readbyqxmd.com/read/28335029/the-challenge-of-assessing-microcephaly-in-the-context-of-the-zika-virus-epidemic
#18
Llorenç Quintó, Alberto L García-Basteiro, Azucena Bardají, Raquel González, Norma Padilla, Flor E Martinez-Espinosa, Myriam Arévalo-Herrera, Eusébio Macete, Clara Menéndez
The present article examines the impact of the current limitations of the microcephaly definition in the context of the Zika virus outbreak. It highlights its dependence on the method used for determining gestational age and other anthropometric parameters, and includes original results of prevalence of microcephaly in four countries from two different continents (Mozambique, Brazil, Guatemala and Colombia). Alternative definitions of microcephaly are proposed to allow the identification of true cases of microcephaly in a more accurate manner...
March 10, 2017: Journal of Tropical Pediatrics
https://www.readbyqxmd.com/read/28325935/a-comparison-study-of-zika-virus-outbreaks-in-french-polynesia-colombia-and-the-state-of-bahia-in-brazil
#19
Daihai He, Daozhou Gao, Yijun Lou, Shi Zhao, Shigui Ruan
Zika virus (ZIKV) disease outbreaks occurred in French Polynesia in 2013-2014 and in Brazil and Colombia in 2015-2016, respectively. Using our recently developed ZIKV disease model, we simulated the reported ZIKV infection cases from French Polynesia, Colombia and the State of Bahia of Brazil. Moreover, we estimated that the infection attack rates were 78.0% (95% confidence interval (CI): 63.5-86.3%) in French Polynesia which closely matches a previous serological study; 20.8% (95% CI: 1.1-50.0%) in Colombia which suggests that the attack rate was most likely less than 50%; and 32...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28296632/severe-neurologic-disorders-in-2-fetuses-with-zika-virus-infection-colombia
#20
Jorge Acosta-Reyes, Edgar Navarro, Maria José Herrera, Eloina Goenaga, Martha L Ospina, Edgar Parra, Marcela Mercado, Pablo Chaparro, Mauricio Beltran, Maria Luz Gunturiz, Lissethe Pardo, Catalina Valencia, Sandra Huertas, Jorge Rodríguez, Germán Ruiz, Diana Valencia, Lisa B Haddad, Sarah C Tinker, Cynthia A Moore, Hernando Baquero
We report the results of pathologic examinations of 2 fetuses from women in Colombia with Zika virus infection during pregnancy that revealed severe central nervous system defects and potential associated abnormalities of the eye, spleen, and placenta. Amniotic fluid and tissues from multiple fetal organs tested positive for Zika virus.
June 2017: Emerging Infectious Diseases
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