Ralph Ternier
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View article: Expanding cholera serosurveillance to vaccinated populations
Expanding cholera serosurveillance to vaccinated populations Open
Mass oral cholera vaccination campaigns targeted at subnational areas with high incidence are central to global cholera elimination efforts. Serological surveillance offers a complementary approach to address gaps in clinical surveillance …
View article: Expanding cholera serosurveillance to vaccinated populations
Expanding cholera serosurveillance to vaccinated populations Open
Mass oral cholera vaccination campaigns targeted at subnational areas with high incidence are central to global cholera elimination efforts. Serological surveillance offers a complementary approach to address gaps in clinical surveillance …
View article: Association between chlorine-treated drinking water, the gut microbiome, and enteric pathogen burden in young children in Haiti: An observational study
Association between chlorine-treated drinking water, the gut microbiome, and enteric pathogen burden in young children in Haiti: An observational study Open
FCR in household drinking water did not correlate with enteric pathogen burden in our study.
View article: Seroprevalence of <i>Vibrio cholerae</i> in Adults, Haiti, 2017
Seroprevalence of <i>Vibrio cholerae</i> in Adults, Haiti, 2017 Open
In Haiti in 2017, the prevalence of serum vibriocidal antibody titers against Vibrio cholerae serogroup O1 among adults was 12.4% in Cerca-la-Source and 9.54% in Mirebalais, suggesting a high recent prevalence of infection. Improved survei…
View article: Poor Sensitivity of Stool Culture Compared to Polymerase Chain Reaction in Surveillance for <i>Vibrio cholerae</i> in Haiti, 2018–2019
Poor Sensitivity of Stool Culture Compared to Polymerase Chain Reaction in Surveillance for <i>Vibrio cholerae</i> in Haiti, 2018–2019 Open
We report on the sensitivity and specificity of stool culture compared to polymerase chain reaction for detecting Vibrio cholerae in Haiti during the waning period of the initial outbreak in 2018–2019. We found that stool culture (with a s…
View article: Food insecurity and risk of cholera: A cross-sectional study and exploratory analysis of potential mediators
Food insecurity and risk of cholera: A cross-sectional study and exploratory analysis of potential mediators Open
Background Food insecurity has been independently associated with developing cholera and there is an inverse relationship between national food security and annual cholera incidence. However, the factors that mediate the risk of cholera am…
View article: Food insecurity and cholera risk: An Exploratory Analysis of Potential Mediators
Food insecurity and cholera risk: An Exploratory Analysis of Potential Mediators Open
Background Food insecurity has been independently associated with cholera infection and there is an inverse relationship between national food security and annual cholera incidence. However, factors that mediate increased cholera risk amon…
View article: Factors associated with diarrheal disease among children aged 1–5 years in a cholera epidemic in rural Haiti
Factors associated with diarrheal disease among children aged 1–5 years in a cholera epidemic in rural Haiti Open
Diarrheal illness is a major cause of morbidity and mortality among children in Haiti, and the impact of diarrheal illness was compounded by a cholera outbreak between 2010 and 2019. Our understanding of risk factors for diarrhea among chi…
View article: Factors associated with diarrheal disease among children aged 1–5 years in a cholera epidemic in rural Haiti
Factors associated with diarrheal disease among children aged 1–5 years in a cholera epidemic in rural Haiti Open
Diarrheal illness is a major cause of morbidity and mortality among children in Haiti, and the impact of diarrheal illness was compounded by a cholera outbreak between 2010 and 2019. Our understanding of risk factors for diarrhea among chi…
View article: Defining Polysaccharide-Specific Antibody Targets against Vibrio cholerae O139 in Humans following O139 Cholera and following Vaccination with a Commercial Bivalent Oral Cholera Vaccine, and Evaluation of Conjugate Vaccines Targeting O139
Defining Polysaccharide-Specific Antibody Targets against Vibrio cholerae O139 in Humans following O139 Cholera and following Vaccination with a Commercial Bivalent Oral Cholera Vaccine, and Evaluation of Conjugate Vaccines Targeting O139 Open
Cholera is a severe dehydrating illness of humans caused by Vibrio cholerae serogroup O1 or O139. Protection against cholera is serogroup specific, and serogroup specificity is defined by O-specific polysaccharide (OSP).
View article: Data for "Factors associated with diarrheal disease among children aged 1-5 years in a cholera epidemic in rural Haiti"
Data for "Factors associated with diarrheal disease among children aged 1-5 years in a cholera epidemic in rural Haiti" Open
Diarrheal illness is a major cause of morbidity and mortality among children in Haiti, and the impact of diarrheal illness was compounded by a cholera outbreak between 2010 and 2019. Our understanding of risk factors for diarrhea among chi…
View article: “<i>Eternally restarting</i>” or “<i>a branch line of continuity</i>”? Exploring consequences of external shocks on community health systems in Haiti
“<i>Eternally restarting</i>” or “<i>a branch line of continuity</i>”? Exploring consequences of external shocks on community health systems in Haiti Open
Political transitions, natural disasters, and disease outbreaks in Haiti continue to profoundly influence CHS functioning, despite mitigating policy and programming efforts. This study documents the relevance of CHS in maintaining primary …
View article: Cholera in Haiti – Authors' reply
Cholera in Haiti – Authors' reply Open
We appreciate the careful consideration of our Article1Lee EC Chao DL Lemaitre JC et al.Achieving coordinated national immunity and cholera elimination in Haiti through vaccination: a modelling study.Lancet Glob Health. 2020; 8: e1081-e108…
View article: ‘It was a ravage!’: lived experiences of epidemic cholera in rural Haiti
‘It was a ravage!’: lived experiences of epidemic cholera in rural Haiti Open
Introduction A cholera epidemic began in Haiti over 8 years ago, prompting numerous, largely quantitative research studies. Assessments of local ‘knowledge, attitudes and practices’ relevant for cholera control have relied primarily on cro…
View article: Achieving coordinated national immunity and cholera elimination in Haiti through vaccination
Achieving coordinated national immunity and cholera elimination in Haiti through vaccination Open
Summary Background Cholera was introduced into Haiti in 2010. Since, there have been over 820,000 reported cases and nearly 10,000 deaths. The year 2019 has seen the lowest reported number of cases since the epidemic began. Oral cholera va…
View article: Food insecurity and self-reported cholera in Haitian households: An analysis of the 2012 Demographic and Health Survey
Food insecurity and self-reported cholera in Haitian households: An analysis of the 2012 Demographic and Health Survey Open
In this study we identified an independent relationship between household food insecurity and both reported history of cholera and death from cholera in a general population. The directionality of this relationship is uncertain and should …
View article: Long-term effectiveness of one and two doses of a killed, bivalent, whole-cell oral cholera vaccine in Haiti: an extended case-control study
Long-term effectiveness of one and two doses of a killed, bivalent, whole-cell oral cholera vaccine in Haiti: an extended case-control study Open
US National Institute of Allergy and Infectious Diseases of the National Institutes of Health and the Bill & Melinda Gates Foundation.
Risk Factors for Self-Reported Cholera Within HIV-Affected Households in Rural Haiti Open
Background Cholera continues to be a major cause of morbidity and mortality worldwide and is now endemic in Haiti since first being introduced in 2010. Cholera and HIV have significant geographic overlap globally, but little is known about…
View article: Haiti&#39;s progress in achieving its 10-year plan to eliminate cholera: hidden sickness cannot be cured
Haiti's progress in achieving its 10-year plan to eliminate cholera: hidden sickness cannot be cured Open
Since the beginning of the cholera epidemic in Haiti 5 years ago, the prevalence of this deadly water-borne disease has fallen far below the initial rates registered during its explosive outset. However, cholera continues to cause extensiv…
View article: Haiti's progress in achieving its 10-year plan to eliminate cholera: hidden sickness cannot be cured
Haiti's progress in achieving its 10-year plan to eliminate cholera: hidden sickness cannot be cured Open
Victoria Koski-Karell,1,2 Paul E Farmer,2–4 Benito Isaac,5 Elizabeth M Campa,5 Loune Viaud,5 Paul C Namphy,6 Ralph Ternier,5 Louise C Ivers2–4 1Department of Anthropology, University of Michigan, and University of Michigan Medical School, …
View article: Effectiveness of reactive oral cholera vaccination in rural Haiti: a case-control study and bias-indicator analysis
Effectiveness of reactive oral cholera vaccination in rural Haiti: a case-control study and bias-indicator analysis Open
National Institutes of Health, Delivering Oral Vaccines Effectively project, and Department of Global Health and Social Medicine at Harvard Medical School.