keyword
MENU ▼
Read by QxMD icon Read
search

seroprevalence and dengue

keyword
https://www.readbyqxmd.com/read/29138300/high-zika-virus-seroprevalence-in-salvador-northeastern-brazil-limits-the-potential-for-further-outbreaks
#1
Eduardo Martins Netto, Andres Moreira-Soto, Celia Pedroso, Christoph Höser, Sebastian Funk, Adam J Kucharski, Alexandra Rockstroh, Beate M Kümmerer, Gilmara Souza Sampaio, Estela Luz, Sara Nunes Vaz, Juarez Pereira Dias, Fernanda Anjos Bastos, Renata Cabral, Thomas Kistemann, Sebastian Ulbert, Xavier de Lamballerie, Thomas Jaenisch, Oliver J Brady, Christian Drosten, Manoel Sarno, Carlos Brites, Jan Felix Drexler
During 2015 to 2016, Brazil reported more Zika virus (ZIKV) cases than any other country, yet population exposure remains unknown. Serological studies of ZIKV are hampered by cross-reactive immune responses against heterologous viruses. We conducted serosurveys for ZIKV, dengue virus (DENV), and Chikungunya virus (CHIKV) in 633 individuals prospectively sampled during 2015 to 2016, including microcephaly and non-microcephaly pregnancies, HIV-infected patients, tuberculosis patients, and university staff in Salvador in northeastern Brazil using enzyme-linked immunosorbent assays (ELISAs) and plaque reduction neutralization tests...
November 14, 2017: MBio
https://www.readbyqxmd.com/read/29040262/serological-and-spatial-analysis-of-alphavirus-and-flavivirus-prevalence-and-risk-factors-in-a-rural-community-in-western-kenya
#2
Elysse N Grossi-Soyster, Elizabeth A J Cook, William A de Glanville, Lian F Thomas, Amy R Krystosik, Justin Lee, C Njeri Wamae, Samuel Kariuki, Eric M Fèvre, A Desiree LaBeaud
Alphaviruses, such as chikungunya virus, and flaviviruses, such as dengue virus, are (re)-emerging arboviruses that are endemic in tropical environments. In Africa, arbovirus infections are often undiagnosed and unreported, with febrile illnesses often assumed to be malaria. This cross-sectional study aimed to characterize the seroprevalence of alphaviruses and flaviviruses among children (ages 5-14, n = 250) and adults (ages 15 ≥ 75, n = 250) in western Kenya. Risk factors for seropositivity were explored using Lasso regression...
October 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29016323/enzootic-circulation-of-chikungunya-virus-in-east-africa-serological-evidence-in-nonhuman-kenyan-primates
#3
Gillian Eastwood, Rosemary C Sang, Matilde Guerbois, Evans L N Taracha, Scott C Weaver
Chikungunya virus (CHIKV) is a globally emerging pathogen causing debilitating arthralgia and fever in humans. First identified in Tanzania (1953), this mosquito-borne alphavirus received little further attention until a 2004 re-emergence in Kenya from an unknown source. This outbreak subsequently spread to the Indian Ocean, with adaptation for transmission by a new urban vector. Under the hypothesis that sylvatic progenitor cycles of CHIKV exist in Kenya (as reported in West Africa, between nonhuman primates (NHPs) and arboreal Aedes spp...
September 11, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28993172/hidden-burden-of-chikungunya-in-north-india-a-prospective-study-in-a-tertiary-care-centre
#4
Anju Dinkar, Jitendra Singh, Pradyot Prakash, Arghya Das, Gopal Nath
BACKGROUND: Arboviral diseases, such as chikungunya, dengue and now zika represent a public health problem, especially in tropical countries. Epidemiology of chikungunya and dengue is well known, including its social and climatic factors associated, but only few data and reports of chikungunya are available from North India. The clinical differentiation of chikungunya from dengue is no doubt challenging since both diseases can share clinical signs and symptoms leading to potential misdiagnosis of chikungunya in areas where dengue is endemic...
October 6, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28748839/seroprevalence-of-dengue-in-a-rural-and-an-urbanized-village-a-pilot-study-from-rural-western-india
#5
P S Shah, A Deoshatwar, S Karad, S Mhaske, A Singh, R V Bachal, K Alagarasu, V S Padbidri, D Cecilia
BACKGROUND & OBJECTIVES: Dengue is highly prevalent in tropical and subtropical regions. The prevalence of dengue is influenced by number of factors, i.e. host, vector, virus and environmental conditions including urbanization and population density. A cross sectional study was undertaken to determine the seroprevalence of dengue in two selected villages that differed in the level of their urbanization and population density. METHODS: Two villages with demographically well-defined populations close to Pune, a metropolitan city of western India, were selected for the study...
April 2017: Journal of Vector Borne Diseases
https://www.readbyqxmd.com/read/28722568/epidemiology-of-spotted-fever-group-rickettsioses-and-acute-undifferentiated-febrile-illness-in-villeta-colombia
#6
Álvaro A Faccini-Martínez, Alejandro Ramírez-Hernández, Christian Barreto, Elkin Forero-Becerra, Diego Millán, Elkin Valbuena, Andrea C Sánchez-Alfonso, Wilson O Imbacuán-Pantoja, Jesús A Cortés-Vecino, Luis J Polo-Terán, Néstor Yaya-Lancheros, Jorge Jácome, Ana M Palomar, Sonia Santibáñez, Aránzazu Portillo, José A Oteo, Marylin Hidalgo
Etiology of acute undifferentiated febrile syndrome (AUFS) is often unknown, leading to inaccurate diagnosis and treatment. Villeta town has been identified as an endemic area for spotted fever group (SFG) rickettsioses but little is known about possible amplifier hosts and other Rickettsia species different from Rickettsia rickettsii. Besides, few studies have approached other AUFS etiologies in the region. We investigated the role of dengue, leptospirosis, rickettsioses, human anaplasmosis, and Q fever as possible causes of AUFS in patients from Villeta...
September 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28721101/survey-of-malaria-and-anti-dengue-virus-igg-among-febrile-hiv-infected-patients-attending-a-tertiary-hospital-in-abuja-nigeria
#7
Jelili Olaide Mustapha, Anthony Uchenna Emeribe, Idris Abdullahi Nasir
BACKGROUND: Dengue and malaria are infections, of great public health concern, especially in sub-Saharan Africa where the burden of HIV infection is high. This study was conducted to determine the seroprevalence of dengue virus IgG antibodies and dengue/malaria coinfection among febrile HIV-infected patients attending the University of Abuja Teaching Hospital, Gwagwalada, Abuja. METHODS: In this cross-sectional study, blood samples from 178 consenting HIV-infected patients receiving antiretroviral therapy were collected and tested for plasmodiasis and anti-Dengue virus IgG using malaria microscopy and ELISA, respectively...
2017: HIV/AIDS: Research and Palliative Care
https://www.readbyqxmd.com/read/28719302/a-fatal-hantavirus-pulmonary-syndrome-misdiagnosed-as-dengue-an-investigation-into-the-first-reported-case-in-rio-de-janeiro-state-brazil
#8
Renata Carvalho de Oliveira, Alexandro Guterres, Bernardo Rodrigues Teixeira, Jorlan Fernandes, João Marcos Penna Júnior, Reynaldo de Jesus Oliveira Júnior, Liana Strecht Pereira, João Bosco Júnior, Patrícia Soares Meneguete, Cristina Maria Giordano Dias, Cibele Rodrigues Bonvicino, Paulo Sérgio D'Andrea, Elba Regina Sampaio de Lemos
We report the results of an investigation into a fatal case of hantavirus pulmonary syndrome (HPS) in Rio de Janeiro State, Brazil, where the disease had not been reported previous to 2015. Following the notification of an HPS case, serum samples were collected from the household members and work contacts of the HPS patient and tested for antibody to hantaviruses. Seroprevalence of 22% (10/45) was indicated for hantavirus out of 45 human samples tested. Blood and tissue samples were collected from 72 rodents during fieldwork to evaluate the prevalence of hantavirus infection, by using enzyme-linked immunosorbent assay IgG, and to characterize the rodent hantavirus reservoir(s), by reverse transcription polymerase chain reaction and sequencing...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28716913/antibody-based-assay-discriminates-zika-virus-infection-from-other-flaviviruses
#9
Angel Balmaseda, Karin Stettler, Raquel Medialdea-Carrera, Damaris Collado, Xia Jin, José Victor Zambrana, Stefano Jaconi, Elisabetta Cameroni, Saira Saborio, Francesca Rovida, Elena Percivalle, Samreen Ijaz, Steve Dicks, Ines Ushiro-Lumb, Luisa Barzon, Patricia Siqueira, David W G Brown, Fausto Baldanti, Richard Tedder, Maria Zambon, A M Bispo de Filippis, Eva Harris, Davide Corti
Zika virus (ZIKV) is a mosquito-borne flavivirus that emerged recently as a global health threat, causing a pandemic in the Americas. ZIKV infection mostly causes mild disease, but is linked to devastating congenital birth defects and Guillain-Barré syndrome in adults. The high level of cross-reactivity among flaviviruses and their cocirculation has complicated serological approaches to differentially detect ZIKV and dengue virus (DENV) infections, accentuating the urgent need for a specific and sensitive serological test...
August 1, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28662144/seroprevalence-of-antibodies-to-dengue-and-chikungunya-viruses-in-thailand
#10
Sompong Vongpunsawad, Duangnapa Intharasongkroh, Thanunrat Thongmee, Yong Poovorawan
The abundance of Aedes mosquito species enabled widespread transmission of mosquito-borne chikungunya virus (CHIKV) and dengue virus (DENV) in Southeast Asia. Periodic seroprevalence surveys are therefore necessary to assess the viral burden in the population and the effectiveness of public health interventions. Since the current seroprevalence for CHIKV and DENV in Thailand are unknown, we evaluated evidence of past infection among Thais. Eight-hundred and thirty-five serum samples obtained from individuals living in central and southern Thailand were assessed for anti-CHIKV and anti-DENV IgG antibodies using commercial enzyme-linked immunosorbent assays...
2017: PloS One
https://www.readbyqxmd.com/read/28617803/dengue-seroprevalence-and-force-of-primary-infection-in-a-representative-population-of-urban-dwelling-indonesian-children
#11
Ari Prayitno, Anne-Frieda Taurel, Joshua Nealon, Hindra Irawan Satari, Mulya Rahma Karyanti, Rini Sekartini, Soedjatmiko Soedjatmiko, Hartono Gunardi, Bernie Endyarni Medise, R Tedjo Sasmono, James Mark Simmerman, Alain Bouckenooghe, Sri Rezeki Hadinegoro
BACKGROUND: Indonesia reports the second highest dengue disease burden in the world; these data are from passive surveillance reports and are likely to be significant underestimates. Age-stratified seroprevalence data are relatively unbiased indicators of past exposure and allow understanding of transmission dynamics. METHODOLOGY/PRINCIPAL FINDINGS: To better understand dengue infection history and associated risk factors in Indonesia, a representative population-based cross-sectional dengue seroprevalence study was conducted in 1-18-year-old urban children...
June 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28562637/identification-of-diagnostic-peptide-regions-that-distinguish-zika-virus-from-related-mosquito-borne-flaviviruses
#12
Alexandra J Lee, Roshni Bhattacharya, Richard H Scheuermann, Brett E Pickett
Zika virus (ZIKV) is a member of the Flavivirus genus of positive-sense single-stranded RNA viruses, which includes Dengue, West Nile, Yellow Fever, and other mosquito-borne arboviruses. Infection by ZIKV can be difficult to distinguish from infection by other mosquito-borne Flaviviruses due to high sequence similarity, serum antibody cross-reactivity, and virus co-circulation in endemic areas. Indeed, existing serological methods are not able to consistently differentiate ZIKV from other Flaviviruses, which makes it extremely difficult to accurately calculate the incidence rate of Zika-associated Guillain-Barre in adults, microcephaly in newborns, or asymptomatic infections within a geographical area...
2017: PloS One
https://www.readbyqxmd.com/read/28562600/effects-of-flood-irrigation-on-the-risk-of-selected-zoonotic-pathogens-in-an-arid-and-semi-arid-area-in-the-eastern-kenya
#13
Bernard Bett, Mohammed Y Said, Rosemary Sang, Salome Bukachi, Salome Wanyoike, Shem C Kifugo, Fredrick Otieno, Enoch Ontiri, Ian Njeru, Johanna Lindahl, Delia Grace
To investigate the effects of irrigation on land cover changes and the risk of selected zoonotic pathogens, we carried out a study in irrigated, pastoral and riverine areas in the eastern Kenya. Activities implemented included secondary data analyses to determine land use and land cover (LULC) changes as well as human, livestock and wildlife population trends; entomological surveys to characterize mosquitoes population densities and species distribution by habitat and season; and serological surveys in people to determine the risk of Rift Valley fever virus (RVFV), West Nile fever virus (WNV), dengue fever virus (DFV), Leptospira spp...
2017: PloS One
https://www.readbyqxmd.com/read/28556417/dengue-data-and-surveillance-in-tanzania-a-systematic-literature-review
#14
REVIEW
Tara Ward, Moody Samuel, Dorit Maoz, Silvia Runge-Ranzinger, Ross Boyce, Joao Toledo, Raman Velayudhan, Olaf Horstick
OBJECTIVE: Although there is evidence that dengue virus is circulating in Tanzania, the country lacks a dengue surveillance system. Consequently, the true estimate of dengue seroprevalence, as well as the incidence in the population, the frequency and magnitude of outbreaks is unknown. This study therefore sought to systematically review available dengue data from Tanzania. METHODS: The systematic review was conducted and reported using the PRISMA tool. Five databases (PubMed, Embase, Web of Science, WHOLIS and Google Scholar) were searched for articles using various keywords on the illness, data and geographical location...
August 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28545090/neotropical-bats-that-co-habit-with-humans-function-as-dead-end-hosts-for-dengue-virus
#15
Amanda Vicente-Santos, Andres Moreira-Soto, Claudio Soto-Garita, Luis Guillermo Chaverri, Andrea Chaves, Jan Felix Drexler, Juan Alberto Morales, Alejandro Alfaro-Alarcón, Bernal Rodríguez-Herrera, Eugenia Corrales-Aguilar
Several studies have shown Dengue Virus (DENV) nucleic acids and/or antibodies present in Neotropical wildlife including bats, suggesting that some bat species may be susceptible to DENV infection. Here we aim to elucidate the role of house-roosting bats in the DENV transmission cycle. Bats were sampled in households located in high and low dengue incidence regions during rainy and dry seasons in Costa Rica. We captured 318 bats from 12 different species in 29 households. Necropsies were performed in 205 bats to analyze virus presence in heart, lung, spleen, liver, intestine, kidney, and brain tissue...
May 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28527246/seroprevalence-of-dengue-infection-in-the-municipalities-of-armenia-calarc%C3%A3-la-tebaida-and-montenegro-in-quind%C3%A3-o-2014
#16
Mónica Marcela Jiménez, Jesús Arias, Gabriel Carrasquilla
INTRODUCTION: Dengue is a serious public health problem in Colombia; it is prevalent in 90% of the municipalities in Quindío. Studies on its seroprevalence are required to address public health interventions. OBJECTIVE: To establish the seroprevalence of dengue infection in neighborhoods with high incidence in the municipalities of Armenia, Calarcá, La Tebaida and Montenegro, Quindío, in 2014. MATERIALS AND METHODS: We conducted a probabilistic, stratified, two-stage prevalence study...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28469422/seroprevalence-of-asymptomatic-dengue-virus-infection-and-its-antibodies-among-healthy-eligible-saudi-blood-donors-findings-from-holy-makkah-city
#17
Ahmed M Ashshi, Saad Alghamdi, Adel G El-Shemi, Sabir Almdani, Bassem Refaat, Amr M Mohamed, Hani O Ghazi, Esam I Azhar, Faisal A Al-Allaf
BACKGROUND: Threat to blood transfusion-transmitted dengue virus (DENV) and its antibodies has recently emerged worldwide. Dengue fever is an endemic disease in Saudi Arabia, particularly in its Western region. The aim of this study was to estimate the seroprevalence of asymptomatic DENV infection and its antibodies among eligible Saudi blood donors. METHODS: Serum samples from 910 healthy/eligible adult male Saudi blood donors, who reside in Holy Makkah City of Saudi Arabia, were collected between March 2015 and August 2016 and screened for the detection of DENV nonstructural protein 1 (NS1) antigen and anti-DENV IgM and IgG antibodies using commercial enzyme-linked immunosorbent assay kits (Panbio, Brisbane, QLD, Australia)...
2017: Virology: Research and Treatment
https://www.readbyqxmd.com/read/28398562/continued-transmission-of-zika-virus-in-humans-in-west-africa-1992-2016
#18
Bobby Brooke Herrera, Charlotte A Chang, Donald J Hamel, Souleymane Mboup, Daouda Ndiaye, Godwin Imade, Jonathan Okpokwu, Oche Agbaji, Amy K Bei, Phyllis J Kanki
First identified in 1947 in Uganda, Zika virus (ZIKV) has remained largely unstudied until the recent outbreak in Latin America. This study aimed to measure the prevalence of ZIKV in febrile patients in Senegal and Nigeria in samples collected from 1992 to 2016. The seroprevalence of ZIKV was 6.2% based on ZIKV immunoglobulin M and negative for dengue reactivity. ZIKV envelope was amplified from 4 samples. Phylogenetic analysis showed that the ZIKVs belonged to the African lineage, grouping with either the Nigerian or MR766 sublineages...
May 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28333935/dengue-seroprevalence-seroconversion-and-risk-factors-in-dhaka-bangladesh
#19
Parnali Dhar-Chowdhury, Kishor Kumar Paul, C Emdad Haque, Shakhawat Hossain, L Robbin Lindsay, Antonia Dibernardo, W Abdullah Brooks, Michael A Drebot
BACKGROUND: Dengue virus (DENV) activity has been reported in Dhaka, Bangladesh since the early 1960s with the greatest burden of dengue fever and dengue hemorrhagic fever cases observed in 2000. Since this time, the intensity of dengue activity has varied from year to year, and its determining factors remained relatively unknown. In light of such gaps in knowledge, the main objectives of this study were to determine the magnitude of seroprevalence and seroconversion among the surveyed population, and establish the individual/household level risk factors for the presence of DENV antibodies among all age groups of target populations in the city of Dhaka...
March 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28289727/seroprevalence-of-zika-virus-in-wild-african-green-monkeys-and-baboons
#20
Connor R Buechler, Adam L Bailey, Andrea M Weiler, Gabrielle L Barry, Meghan E Breitbach, Laurel M Stewart, Anna J Jasinska, Nelson B Freimer, Cristian Apetrei, Jane E Phillips-Conroy, Clifford J Jolly, Jeffrey Rogers, Thomas C Friedrich, David H O'Connor
Zika virus (ZIKV) has recently spread through the Americas and has been associated with a range of health effects, including birth defects in children born to women infected during pregnancy. Although the natural reservoir of ZIKV remains poorly defined, the virus was first identified in a captive "sentinel" macaque monkey in Africa in 1947. However, the virus has not been reported in humans or nonhuman primates (NHPs) in Africa outside Gabon in over a decade. Here, we examine ZIKV infection in 239 wild baboons and African green monkeys from South Africa, the Gambia, Tanzania, and Zambia using combinations of unbiased deep sequencing, quantitative reverse transcription-PCR (qRT-PCR), and an antibody capture assay that we optimized using serum collected from captive macaque monkeys exposed to ZIKV, dengue virus, and yellow fever virus...
March 2017: MSphere
keyword
keyword
80509
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"