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Sero-epidemiology

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https://www.readbyqxmd.com/read/28727726/a-cross-sectional-seroepidemiological-survey-of-typhoid-fever-in-fiji
#1
Conall H Watson, Stephen Baker, Colleen L Lau, Kitione Rawalai, Mere Taufa, Jerimaia Coriakula, Nga Tran Vu Thieu, Tan Trinh Van, Dung Tran Thi Ngoc, Niel Hens, John Lowry, Ruklanthi de Alwis, Jorge Cano, Kylie Jenkins, E Kim Mulholland, Eric J Nilles, Mike Kama, W John Edmunds
Fiji, an upper-middle income state in the Pacific Ocean, has experienced an increase in confirmed case notifications of enteric fever caused by Salmonella enterica serovar Typhi (S. Typhi). To characterize the epidemiology of typhoid exposure, we conducted a cross-sectional sero-epidemiological survey measuring IgG against the Vi antigen of S. Typhi to estimate the effect of age, ethnicity, and other variables on seroprevalence. Epidemiologically relevant cut-off titres were established using a mixed model analysis of data from recovering culture-confirmed typhoid cases...
July 20, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28693608/temporal-analysis-of-igg-antibody-responses-to-plasmodium-falciparum-antigens-in-relation-to-changing-malaria-epidemiology-in-a-west-african-setting
#2
Makhtar Niang, Oumy Niass, Nafissatou Diagne, Fatoumata Diene Sarr, Michel Matar Faye, Fode Diop, Babacar Diouf, Joseph Faye, Abdoulaye Badiane, Ronald Perraut, Cheikh Sokhna, Jean-François Trape, Adama Tall, Aissatou Toure-Balde
BACKGROUND: Coordinated scaled-up malaria control interventions have substantially contributed to the dramatic decrease of malaria-related morbidity and mortality in several endemic countries, including Senegal. However, the impacts of a given malaria control intervention on vector and parasite populations, acquired immunity, and disease burden remain very poorly documented largely due to the lack of continuous surveys. This study took advantage of the sera bank established as part of the Dielmo longitudinal project to investigate the dynamics of IgG antibody responses that accompanied the epidemiological changes resulting from malaria control interventions...
July 11, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28693081/-a-sero-epidemiological-study-of-hepatitis-e-among-general-population-in-shandong-province-of-china-in-2014
#3
B Y Yan, L Zhang, J J Lyu, Y Feng, J Y Liu, W L Wu, L Z Song, A Q Xu
Objective: To analyze the sero-epidemiological characteristics of hepatitis E virus (HEV) in Shandong province, and thereby to provide evidence for the policy-making of hepatitis E prevention and control. Methods: The inhabitants aged between 1-59 years old were randomly selected to participate in the study by two-stage stratified random sampling method from 12 counties in Shandong province in October, 2014. Firstly two townships were selected from each county by probability proportional to size sampling (PPS) method...
July 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28686589/the-sero-epidemiology-of-rift-valley-fever-in-people-in-the-lake-victoria-basin-of-western-kenya
#4
Elizabeth Anne Jessie Cook, Elysse Noel Grossi-Soyster, William Anson de Glanville, Lian Francesca Thomas, Samuel Kariuki, Barend Mark de Clare Bronsvoort, Claire Njeri Wamae, Angelle Desiree LaBeaud, Eric Maurice Fèvre
Rift Valley fever virus (RVFV) is a zoonotic arbovirus affecting livestock and people. This study was conducted in western Kenya where RVFV outbreaks have not previously been reported. The aims were to document the seroprevalence and risk factors for RVFV antibodies in a community-based sample from western Kenya and compare this with slaughterhouse workers in the same region who are considered a high-risk group for RVFV exposure. The study was conducted in western Kenya between July 2010 and November 2012. Individuals were recruited from randomly selected homesteads and a census of slaughterhouses...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28669054/trichomonas-vaginalis-infection-and-risk-of-prostate-cancer-associations-by-disease-aggressiveness-and-race-ethnicity-in-the-plco-trial
#5
Miguelle Marous, Wen-Yi Huang, Charles S Rabkin, Richard B Hayes, John F Alderete, Bernard Rosner, Robert L Grubb, Anke C Winter, Siobhan Sutcliffe
PURPOSE: Results from previous sero-epidemiologic studies of Trichomonas vaginalis infection and prostate cancer (PCa) support a positive association between this sexually transmitted infection and aggressive PCa. However, findings from previous studies are not entirely consistent, and only one has investigated the possible relation between T. vaginalis seropositivity and PCa in African-American men who are at highest risk of both infection and PCa. Therefore, we examined this possible relation in the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial, including separate analyses for aggressive PCa and African-American men...
July 1, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28646697/seroepidemiology-of-whooping-cough-in-the-czech-republic-estimates-of-incidence-of-infection-in-adults
#6
R Chlibek, J Smetana, R Sosovickova, K Fabianova, J Zavadilova, P Dite, P Gal, P Naplava, D Lzicarova
OBJECTIVES: Despite widespread vaccination programmes, pertussis remains a significant health burden in many countries. Low awareness of the disease, the high rate of asymptomatic cases in adults and difficulties with diagnosis could explain the under-reporting of pertussis. The lack of data on actual incidence constitutes an obstacle for public health authorities for the implementation of a vaccination strategy against pertussis in adults. The aim of this study was to evaluate the seroprevalence of antibodies against Bordetella pertussis infection in adults and to estimate the actual incidence of the disease compared with the reported incidence...
June 21, 2017: Public Health
https://www.readbyqxmd.com/read/28611853/an-unsettled-debate-about-the-potential-role-of-infection-in-pathogenesis-of-atherosclerosis
#7
REVIEW
Udip Dahal, Dikshya Sharma, Kumud Dahal
Association of infection with atherosclerosis is by no means new. Several sero-epidemiological and pathologic studies as well as animal models have shown a link between infection and atherosclerosis. Exciting discoveries in recent times related to role of inter-individual genetic variation in modulating inflammatory response to infection have reignited the enthusiasm in proving a causal link between infection and atherosclerosis. The purpose of this article was to review and analyze the available evidence linking infection with atherosclerosis...
July 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28599792/a-cross-sectional-survey-measuring-sero-incidence-of-pertussis-infection-among-japanese-junior-and-senior-high-school-students-in-2013-and-2014
#8
Hideyuki Ikematsu, Naoki Kawai, Shigehiro Yajima
Pertussis in adolescents has been increasingly documented in recent years, but diagnosis from the clinical symptoms is difficult. Serological diagnosis with IgG antibody to pertussis toxin (IgG PT) is useful for detecting pertussis cases in this population. However, no serological criterion for recent infection has been fully validated and large-scale, longitudinal serological data among Japanese junior and senior high school students are lacking. Paired serum samples of 3243 junior and senior high school students, collected in 2013 and 2014, were analyzed for IgG PT and its relationship to possible risk factors...
July 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28592087/-analysis-on-sero-epidemiological-characteristics-of-hepatitis-b-virus-among-people-born-during-1994-2001-before-and-after-hepatitis-b-vaccine-catch-up-vaccination-china
#9
F Z Wang, H Zheng, N Miao, X J Sun, G M Zhang, X F Liang, F Q Cui
Objective: To analyze the sero-epidemiological characteristics of hepatitis B virus among people born during 1994-2001, conducted by the national hepatitis B sero-epidemiological surveys in 2006 and 2014. Methods: Based on the data of the two national hepatitis B sero-epidemiological surveys in 2006 and 2014, people born during 1994-2001 were included into our analysis as this study subjects. The two surveys were conducted in 160 disease surveillance points of 31 provinces (not including Hong Kong, Macao and Taiwan) in China...
June 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28577994/comparison-between-two-population-based-hepatitis-b-serosurveys-with-an-8-year-interval-in-shandong-province-china
#10
Jiaye Liu, Jingjing Lv, Bingyu Yan, Yi Feng, Lizhi Song, Aiqiang Xu, Li Zhang, Yongping Yan
BACKGROUND: Tremendous progress has been made in hepatitis B virus (HBV) prevention and control in the last 30 years in China, but it continues to be a major public health problem. The most recently reported population-based seroepidemiological survey on HBV in Shandong Province in China was published in 2006, and an updated baseline for HBV prevalence was badly needed in the province to identify the change in HBV epidemiology in the last decade. METHODS: Two population-based cross-sectional serosurveys were performed among the population aged 1-59 years in the same sample areas in Shandong Province, China in 2006 and 2014, respectively...
May 31, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28468074/-sero-epidemiological-survey-on-hepatitis-b-virus-in-yunnan-province-between-2006-and-2014
#11
W Y Kang, Z Y Tian, Q F Li, L F Zhang, L Xu
Objective: Through two nationwide sero-epidemiological survey programs on hepatitis B virus (HBV), hepatitis B markers in Yunnan province were compared between the findings in 2014 and in 2006. Results were used to understand the HBV epidemic status in Yunnan province and to estimate the efficiency of measures on prevention and control of the disease. Methods: People at the age of 1-29 years were sampled from 6 counties of the National Disease Surveillance sites in Yunnan province, by multi-stage random sampling method...
April 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28468062/-sero-epidemiological-analysis-on-hepatitis-b-among-children-aged-1-14-years-old-born-to-hbsag-positive-mother-in-china-2014
#12
F Z Wang, H Zheng, G M Zhang, N Miao, X J Sun, F Q Cui
Objective: To analyze the sero-epidemiological features of hepatitis B among children aged 1-14 years old who were born to HBsAg positive mothers. Methods: Based on the results from the hepatitis B national sero-survey in 2014, children aged 1-14 years old born to HBsAg positive mother were involved in this study. Positive rates on HBsAg, anti-HBs, anti-HBc by gender, age, nationality, birth place, residency (urban/rural), region (eastern/central/western) and related factors of HBsAg and anti-HBs for children under research, were analyzed by SPSS 18...
April 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28456531/rubella-virus-immunization-status-in-preconception-period-among-chinese-women-of-reproductive-age-a-nation-wide-cross-sectional-study
#13
Qiongjie Zhou, Qiaomei Wang, Haiping Shen, Yiping Zhang, Shikun Zhang, Xiaotian Li, Ganesh Acharya
OBJECTIVE: Population-based studies on sero-epidemiology of Rubella in women before conception are lacking. The aim of this study was to investigate the sero-prevalence of Rubella in a nationwide survey among Chinese women planning to get pregnant within six months. METHODS: This population-based, cross-sectional, sero-survey of Rubella virus infection was a part of the National Free Preconception Health Examination Project covering all 31 provinces in Mainland China...
April 26, 2017: Vaccine
https://www.readbyqxmd.com/read/28438608/serological-evidence-of-hepatitis-e-virus-infection-in-dromedary-camels-in-ethiopia
#14
Tian-Cheng Li, Sayaka Yoshizaki, Xianfeng Zhou, Hiroshi Sentsui, Kazuya Shirato, Shutoku Matsuyama, Simenew Keskes Melaku, Boldbaatar Bazartseren, Naokazu Takeda, Takaji Wakita
The genome of dromedary camel hepatitis E virus (DcHEV) has been detected in stool and serum samples from dromedary camels, but the sero-epidemiological information of DcHEV infection remains unclear. A total of 246 serum samples collected from dromedary camels (Camelus dromedarius) in Ethiopia, and 40 serum samples from Bactrian camels (Camelus ferus) in Mongolia were examined for the detection of anti-DcHEV IgG antibody by a newly developed enzyme-linked immunosorbent assay (ELISA) by using DcHEV-like particles (DcHEV-LPs) as the antigen...
April 21, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28405850/retrospective-study-of-leptospirosis-in-malaysia
#15
REVIEW
Bashiru Garba, Abdul Rani Bahaman, Siti Khairani-Bejo, Zunita Zakaria, Abdul Rahim Mutalib
Leptospirosis is a bacterial disease transmitted to humans and animals by direct or indirect contact with urine or body fluids from infected animals especially rodents. Infection can be associated with wide clinical spectrum varying from asymptomatic to severe multi-organ syndrome with life-threatening consequences. We conducted a review of published studies on incidences, case reports, sero-epidemiological surveys from year 2000 to 2015 using different electronic data bases. Our study revealed that majority of the studies were conducted in Peninsular Malaysia and predominantly among high-risk human groups...
June 2017: EcoHealth
https://www.readbyqxmd.com/read/28344403/toxoplasma-gondii-infection-in-meat-animals-from-africa-systematic-review-and-meta-analysis-of-sero-epidemiological-studies
#16
Aretas Babatoundé Nounnagnon Tonouhewa, Yao Akpo, Philippe Sessou, Camus Adoligbe, Eric Yessinou, Yaovi Gildas Hounmanou, Marc Napoléon Assogba, Issaka Youssao, Souaïbou Farougou
AIM: Toxoplasma gondii is an ubiquitous apicomplexan parasite which causes toxoplasmosis in humans and animals. Felids especially cats are definitive hosts and almost all warm-blooded mammals, including livestock and human can serve as intermediate hosts. Food animals can be reservoirs for T. gondii and act as one of the sources for parasite transmission to humans. The objective of this study is to collect serological data on the prevalence of anti-T. gondii antibody, and risk factors for certain food animals from Africa to provide a quantitative estimate of T...
February 2017: Veterinary World
https://www.readbyqxmd.com/read/28315717/exploring-novel-sero-epidemiological-tools-effect-of-different-storage-conditions-on-longitudinal-stability-of-microarray-slides-comprising-influenza-a-measles-and-streptococcus-pneumoniae-antigens
#17
Gudrun S Freidl, Erwin de Bruin, Maarten Schipper, Marion Koopmans
In this study we evaluated the long-term stability of a microarray-based serological screening platform, containing antigens of influenza A, measles and Streptococcus pneumoniae, as part of a preparedness research program aiming to develop assays for syndromic disease detection. Spotted microarray slides were kept at four different storage regimes with varying temperature and humidity conditions. We showed that under the standard storage condition in a temperature-controlled (21°C) and desiccated environment (0% relative humidity), microarray slides remained stable for at least 22 months without loss of antigen quality, whereas the other three conditions (37°C, desiccated; Room temperature, non-desiccated; Frozen, desiccated) produced acceptable results for some antigens (influenza A, S...
March 16, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28287806/trends-in-sero-epidemiology-of-human-immunodeficiency-virus-in-voluntary-blood-donations-in-iran-2008-2013
#18
Maryam Zadsar, Ali Akbar Pourfathollah, Mahboube Rasouli, Gharib Karimi
BACKGROUND: Various strategies are implemented to increase blood safety. However, there is always a small amount of residual risk. The amount of risk is associated with the incidence and prevalence of infection in the community. Since increases in the prevalence and changing the pattern of HIV transmission have been observed in the community, monitoring of HIV prevalence among general population and blood donors is necessary. This study aimed to determine the prevalence of HIV in Iranian blood donations...
March 2017: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/28274279/-preliminary-seroepidemiological-survey-of-dengue-infections-in-pakistan-2009-2014
#19
Muhammad Suleman, Hyeong-Woo Lee, Syed Sohail Zahoor Zaidi, Muhammad Masroor Alam, Nadia Nisar, Uzma Bashir Aamir, Salmaan Sharif, Shahzad Shaukat, Adnan Khurshid, Mehar Angez, Massab Umair, Ghulam Mujtaba, Rani Faryal
BACKGROUND: Dengue virus is the causative agent of dengue fever, a vector borne infection which causes self-limiting to life threatening disease in humans. A sero-epidemiological study was conducted to understand the current epidemiology of dengue virus in Pakistan which is now known as a dengue endemic country after its first reported outbreak in 1994. METHODS: To investigate the prevalence of dengue virus in Pakistan during 2009-2014, a total of 9,493 blood samples were screened for the detection of anti-dengue IgM antibodies using ELISA...
March 9, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28270152/a-systematic-review-on-malaria-sero-epidemiology-studies-in-the-brazilian-amazon-insights-into-immunological-markers-for-exposure-and-protection
#20
REVIEW
Pedro M Folegatti, André M Siqueira, Wuelton M Monteiro, Marcus Vinícius G Lacerda, Chris J Drakeley, Érika M Braga
BACKGROUND: Considerable success in reducing malaria incidence and mortality has been achieved in Brazil, leading to discussions over the possibility of moving towards elimination. However, more than reporting and counting clinical cases, elimination will require the use of efficient tools and strategies for measuring transmission dynamics and detecting the infectious reservoir as the primary indicators of interest for surveillance and evaluation. Because acquisition and maintenance of anti-malarial antibodies depend on parasite exposure, seroprevalence rates could be used as a reliable tool for assessing malaria endemicity and an adjunct measure for monitoring transmission in a rapid and cost-effective manner...
March 7, 2017: Malaria Journal
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