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Articles 1 - 18 of 18
Full-Text Articles in Medicine and Health Sciences
Women's Health: Optimal Nutrition Throughout The Lifecycle, Edith J M Feskens, Regan Bailey, Zulfiqar Ahmed Bhutta, Hans-Konrad Biesalski, Heather Eicher-Miller, Klaus Krämer, Wen-Harn Pan, James C. Griffiths
Women's Health: Optimal Nutrition Throughout The Lifecycle, Edith J M Feskens, Regan Bailey, Zulfiqar Ahmed Bhutta, Hans-Konrad Biesalski, Heather Eicher-Miller, Klaus Krämer, Wen-Harn Pan, James C. Griffiths
Department of Paediatrics and Child Health
Sex differences are an important consideration when researching and establishing policies for nutrition and optimal health. For women's health, there are important physiologic, neurologic, and hormonal distinctions throughout the lifecycle that impact nutritional needs. Distinct from those for men, these nutritional needs must be translated into appropriate nutrition policy that aims to not only avoid overt nutritional deficiency, but also to promote health and minimize risk for chronic disease. Through a series of webinars, scientific experts discussed the advances in the understanding of the unique nutritional needs, challenges and opportunities of the various life stages for women across the life …
Childhood Mortality During And After Acute Illness In Africa And South Asia: A Prospective Cohort Study, Childhood Acute Illness And Nutrition (Chain) Network, Abdoulaye Hama Diallo, Abu Sadat Mohammad Sayeem Bin Shahid, Ali Fazal Khan, Ali Faisal Saleem, Benson O. Singa, Blaise Siezanga Gnoumou, Caroline Tigoi, Syed Asad Ali, Zaubina Kazi
Childhood Mortality During And After Acute Illness In Africa And South Asia: A Prospective Cohort Study, Childhood Acute Illness And Nutrition (Chain) Network, Abdoulaye Hama Diallo, Abu Sadat Mohammad Sayeem Bin Shahid, Ali Fazal Khan, Ali Faisal Saleem, Benson O. Singa, Blaise Siezanga Gnoumou, Caroline Tigoi, Syed Asad Ali, Zaubina Kazi
Department of Paediatrics and Child Health
Background: Mortality among children with acute illness in low-income and middle-income settings remains unacceptably high and the importance of post-discharge mortality is increasingly recognised. We aimed to explore the epidemiology of deaths among young children with acute illness across sub-Saharan Africa and south Asia to inform the development of interventions and improved guidelines.
Methods: In this prospective cohort study, we enrolled children aged 2-23 months with acute illness, stratified by nutritional status defined by anthropometry (ie, no wasting, moderate wasting, or severe wasting or kwashiorkor), who were admitted to one of nine hospitals in six countries across sub-Saharan Africa and …
Bile Acid Profiling Reveals Distinct Signatures In Undernourished Children With Environmental Enteric Dysfunction, Xueheng Zhao, Kenneth D R. Setchell, Rong Huang, Indika Mallawaarachchi, Lubaina Ehsan, Edward Dobrzykowski Iii, Junfang Zhao, Sana Syed, Najeeha Talat Iqbal, Junaid Iqbal, Kamran Sadiq, Sheraz Ahmed, Syed Asad Ali
Bile Acid Profiling Reveals Distinct Signatures In Undernourished Children With Environmental Enteric Dysfunction, Xueheng Zhao, Kenneth D R. Setchell, Rong Huang, Indika Mallawaarachchi, Lubaina Ehsan, Edward Dobrzykowski Iii, Junfang Zhao, Sana Syed, Najeeha Talat Iqbal, Junaid Iqbal, Kamran Sadiq, Sheraz Ahmed, Syed Asad Ali
Department of Paediatrics and Child Health
Background: Intestinal inflammation and malabsorption in environmental enteric dysfunction (EED) are associated with early childhood growth faltering in impoverished settings worldwide.
Objectives: The goal of this study was to identify candidate biomarkers associated with inflammation, EED histology, and as predictors of later growth outcomes by focusing on the liver-gut axis by investigating the bile acid metabolome.
Methods: Undernourished rural Pakistani infants (n = 365) with weight-for-height Z score (WHZ) < -2 were followed up to the age of 24 mo and monitored for growth, infections, and EED. Well-nourished local children (n = 51) were controls, based on consistent WHZ > 0 and height-for-age Z score (HAZ) > -1 on 2 consecutive visits at 3 and 6 mo. Serum bile acid (sBA) profiles were measured by tandem MS at the ages of 3-6 …
Association Of Maternal Prenatal Selenium Concentration And Preterm Birth: A Multicountry Meta-Analysis, Nagendra Monangi, Huan Xu, Waqasuddin Khan, Furqan Kabir, Muhammad Imran Nisar, Aneeta Hotwani, Usma Mehmood, Ambreen Nizar, Javairia Khalid, Fyezah Jehan
Association Of Maternal Prenatal Selenium Concentration And Preterm Birth: A Multicountry Meta-Analysis, Nagendra Monangi, Huan Xu, Waqasuddin Khan, Furqan Kabir, Muhammad Imran Nisar, Aneeta Hotwani, Usma Mehmood, Ambreen Nizar, Javairia Khalid, Fyezah Jehan
Department of Paediatrics and Child Health
Background: Selenium (Se), an essential trace mineral, has been implicated in preterm birth (PTB). We aimed to determine the association of maternal Se concentrations during pregnancy with PTB risk and gestational duration in a large number of samples collected from diverse populations.
Methods: Gestational duration data and maternal plasma or serum samples of 9946 singleton live births were obtained from 17 geographically diverse study cohorts. Maternal Se concentrations were determined by inductively coupled plasma mass spectrometry analysis. The associations between maternal Se with PTB and gestational duration were analysed using logistic and linear regressions. The results were then combined using …
Effectiveness Of Specialized Nutritious Foods And Social And Behavior Change Communication Interventions To Prevent Stunting Among Children In Badakhshan, Afghanistan: Protocol For A Quasi-Experimental Study, Sajid Bashir Soofi, Gul Nawaz Khan, Shabina Ariff, Arjumand Rizvi, Mohammad Asif Hussainyar, Cecilia Garzon, Martin Ahimbisibwe, Rafiullah Sadeed, Ahmad Reshad
Effectiveness Of Specialized Nutritious Foods And Social And Behavior Change Communication Interventions To Prevent Stunting Among Children In Badakhshan, Afghanistan: Protocol For A Quasi-Experimental Study, Sajid Bashir Soofi, Gul Nawaz Khan, Shabina Ariff, Arjumand Rizvi, Mohammad Asif Hussainyar, Cecilia Garzon, Martin Ahimbisibwe, Rafiullah Sadeed, Ahmad Reshad
Department of Paediatrics and Child Health
Stunting predominantly occurs during the first 1000 days of life and continues to the age of five years. We will aim to assess the effectiveness of specialized nutritious foods (SNF)and social and behavior change communication (SBCC) strategies during the first 1000 days of life to prevent stunting among children in two rural districts of Badakhshan, Afghanistan. This will be a quasi-experimental pre-post study with the control group utilizing qualitative and quantitative methods. Before launching the program, formative research will be conducted on the acceptability, appropriate use and SBCC strategies needed to support the introduction of intervention package. Repeated cross-sectional baseline …
Mucosal Genomics Implicate Lymphocyte Activation And Lipid Metabolism In Refractory Environmental Enteric Dysfunction, Najeeha Talat Iqbal, Najeeb Rahman, Kamran Sadiq, Zubair Ahmad, Romana Idress, Junaid Iqbal, Sheraz Ahmed, Aneeta Hotwani, Fayyaz Umrani, Sana Syed, Syed Asad Ali
Mucosal Genomics Implicate Lymphocyte Activation And Lipid Metabolism In Refractory Environmental Enteric Dysfunction, Najeeha Talat Iqbal, Najeeb Rahman, Kamran Sadiq, Zubair Ahmad, Romana Idress, Junaid Iqbal, Sheraz Ahmed, Aneeta Hotwani, Fayyaz Umrani, Sana Syed, Syed Asad Ali
Department of Paediatrics and Child Health
Background & aims: Environmental enteric dysfunction (EED) limits the Sustainable Development Goals of improved childhood growth and survival. We applied mucosal genomics to advance our understanding of EED.
Methods: The Study of Environmental Enteropathy and Malnutrition (SEEM) followed 416 children from birth to 24 months in a rural district in Pakistan. Biomarkers were measured at 9 months and tested for association with growth at 24 months. The duodenal methylome and transcriptome was determined in 52 undernourished SEEM participants and 42 North American controls and celiac disease patients.
Results: After accounting for growth at study entry, circulating IGF-1 and ferritin predicted …
Determinants Of Infant And Young Complementary Feeding Practices Among Children 6-23 Months Of Age In Urban Pakistan: A Multicenter Longitudinal Study, Shabina Ariff, Kamran Sadiq, Javairia Khalid, Laila Sikanderali, Batha Tariq, Fariha Shaheen, Gul Nawaz Khan, Atif Habib, Sajid Bashir Soofi
Determinants Of Infant And Young Complementary Feeding Practices Among Children 6-23 Months Of Age In Urban Pakistan: A Multicenter Longitudinal Study, Shabina Ariff, Kamran Sadiq, Javairia Khalid, Laila Sikanderali, Batha Tariq, Fariha Shaheen, Gul Nawaz Khan, Atif Habib, Sajid Bashir Soofi
Department of Paediatrics and Child Health
Background: Suboptimal feeding practices have a negative impact on children's health and growth in the first 2 years of life and increase their risk of undernutrition, morbidity, and mortality. The aim of the study was to assess the factors that influence infant and young child feeding practices among urban mothers in a hospital setting at Karachi, Pakistan.
Methods: A longitudinal multi-center cohort study was conducted in four countries, MULTICENTER BODY COMPOSITION REFERENCE STUDY (MBCRS) to produce normal body composition reference data in healthy infants from 3 months to 24 months of age. Repeated anthropometric (weight, length and head circumference) and …
Frequency Of Hypocalcemic Fits In Children 2 Months To 2 Years Of Age, Presenting With The First Episode Of Afebrile Seizures At Hospital Settings In Urban Pakistan: A Cross-Sectional Study, Waseem Rahman, Heeramani Lohana, Sarwat Urooj, Sheraz Ahmed, Abdul Moeed, Khadija Nuzhat Humayun
Frequency Of Hypocalcemic Fits In Children 2 Months To 2 Years Of Age, Presenting With The First Episode Of Afebrile Seizures At Hospital Settings In Urban Pakistan: A Cross-Sectional Study, Waseem Rahman, Heeramani Lohana, Sarwat Urooj, Sheraz Ahmed, Abdul Moeed, Khadija Nuzhat Humayun
Department of Paediatrics and Child Health
Introduction: Seizures are common in the pediatric age group, occurring approximately 10% of children. Hypocalcemia is one of the most common metabolic causes of afebrile seizures. The objective of the study was to determine the frequency of hypocalcemic fits in children presenting with the first episode of afebrile seizures from 2 months to 2 years of age.
Methods: The study was conducted at the Aga Khan hospital Karachi and its three secondary hospitals including the following sites of Kharadar, Hyderabad, and garden. It was a cross-sectional study. The duration of the study was of 6 months from 18th July 2017 …
Researching The Delivery Of Health And Nutrition Interventions For Women And Children In The Context Of Armed Conflict: Lessons On Research Challenges And Strategies From Branch Consortium Case Studies Of Somalia, Mali, Pakistan And Afghanistan, Michelle F. Gaffey, Anushka Ataullahjan, Jai K. Das, Mohammed Shafiq Mirzazada, Moctar Tounkara, Abdirisak A. Dalmar, Zulfiqar Ahmed Bhutta
Researching The Delivery Of Health And Nutrition Interventions For Women And Children In The Context Of Armed Conflict: Lessons On Research Challenges And Strategies From Branch Consortium Case Studies Of Somalia, Mali, Pakistan And Afghanistan, Michelle F. Gaffey, Anushka Ataullahjan, Jai K. Das, Mohammed Shafiq Mirzazada, Moctar Tounkara, Abdirisak A. Dalmar, Zulfiqar Ahmed Bhutta
Department of Paediatrics and Child Health
Background: The BRANCH Consortium recently conducted 10 mixed-methods case studies to investigate the provision of health and nutrition interventions for women and children in conflict-affected countries, aiming to better understand the dominant influences on humanitarian health actors' programmatic decision-making and how such actors surmount intervention delivery barriers. In this paper, the research challenges encountered and the mitigating strategies employed by the case study investigators in four of the BRANCH case study contexts are discussed: Somalia, Mali, Pakistan and Afghanistan.
Discussion: Many of the encountered research challenges were anticipated, with investigators adopting mitigation strategies in advance or early on, but others …
Specialized Nutritious Food Combined With Cash Transfers And Social And Behavior Change Communication To Prevent Stunting Among Children Aged 6 To 23 Months In Pakistan: Protocol For A Cluster Randomized Controlled Trial, Gul Nawaz Khan, Sumra Kureishy, Shabina Ariff, Atif Habib, Asra Abeer Usmani, Areeba Mubarik, Masawar Hussain, Naveed Akbar, Pablo Rodriguez De Castro, Alba Cecilia Garzon, Saskia De Pee, Sajid Bashir Soofi
Specialized Nutritious Food Combined With Cash Transfers And Social And Behavior Change Communication To Prevent Stunting Among Children Aged 6 To 23 Months In Pakistan: Protocol For A Cluster Randomized Controlled Trial, Gul Nawaz Khan, Sumra Kureishy, Shabina Ariff, Atif Habib, Asra Abeer Usmani, Areeba Mubarik, Masawar Hussain, Naveed Akbar, Pablo Rodriguez De Castro, Alba Cecilia Garzon, Saskia De Pee, Sajid Bashir Soofi
Department of Paediatrics and Child Health
Background: In Pakistan, the prevalence of stunting in children younger than 5 years has remained above global critical levels over the past two decades, with the stunting rate being 40.2% in 2018. Children living in rural areas and in the poorest households suffer the most from stunting across the country-43.2% in rural areas and 51.4% in the lowest wealth quintile. As a continuing public health concern, it is essential that stunting prevention is a national priority in order to ensure human capital development, especially among the poorest households.
Objective: The primary objective of this study is to determine the effect …
Effect Of Lipid-Based Nutrient Supplement-Medium Quantity On Reduction Of Stunting In Children 6-23 Months Of Age In Sindh, Pakistan: A Cluster Randomized Controlled Trial, Gul Nawaz Khan, Sumra Kureishy, Shabina Ariff, Arjumand Rizvi, Muhammad Sajid, Cecilia Garzon, Ali Ahmad Khan, Saskia De Pee, Sajid Bashir Soofi, Zulfiqar Ahmed Bhutta
Effect Of Lipid-Based Nutrient Supplement-Medium Quantity On Reduction Of Stunting In Children 6-23 Months Of Age In Sindh, Pakistan: A Cluster Randomized Controlled Trial, Gul Nawaz Khan, Sumra Kureishy, Shabina Ariff, Arjumand Rizvi, Muhammad Sajid, Cecilia Garzon, Ali Ahmad Khan, Saskia De Pee, Sajid Bashir Soofi, Zulfiqar Ahmed Bhutta
Department of Paediatrics and Child Health
Background: Chronic childhood malnutrition, or stunting, remains a persistent barrier to achieve optimal cognitive development, child growth and ability to reach full potential. Almost half of children under-five years of age are stunted in the province of Sindh, Pakistan.
Objective: The primary objective of this study was to test the hypothesis that the provision of lipid-based nutrient supplement-medium-quantity (LNS-MQ) known as Wawamum will result in a 10% reduction in risk of being stunted at the age of 24 months in the intervention group compared with the control group.
Design: A cluster randomized controlled trial was conducted in Thatta and Sujawal …
Determinants Of Linear Growth Faltering Among Children With Moderate-To-Severe Diarrhea In The Global Enteric Multicenter Study, Rebecca L. Brander, Patricia B. Pavlinac, Judd L. Walson, Grace C. John-Stewart, Marcia R. Weaver, Abu S. G Faruque, Anita K. M. Zaidi, Dipika Sur, Samba O. Sow, M Jahangir Hossain
Determinants Of Linear Growth Faltering Among Children With Moderate-To-Severe Diarrhea In The Global Enteric Multicenter Study, Rebecca L. Brander, Patricia B. Pavlinac, Judd L. Walson, Grace C. John-Stewart, Marcia R. Weaver, Abu S. G Faruque, Anita K. M. Zaidi, Dipika Sur, Samba O. Sow, M Jahangir Hossain
Department of Paediatrics and Child Health
Background: Moderate-to-severe diarrhea (MSD) in the first 2 years of life can impair linear growth. We sought to determine risk factors for linear growth faltering and to build a clinical prediction tool to identify children most likely to experience growth faltering following an episode of MSD.
Methods: Using data from the Global Enteric Multicenter Study of children 0-23 months old presenting with MSD in Africa and Asia, we performed log-binomial regression to determine clinical and sociodemographic factors associated with severe linear growth faltering (loss of ≥ 0.5 length-for-age z-score [LAZ]). Linear regression was used to estimate associations with ΔLAZ. A …
Early Life Child Micronutrient Status, Maternal Reasoning, And A Nurturing Household Environment Have Persistent Influences On Child Cognitive Development At Age 5 Years: Results From Mal-Ed, Benjamin J J. Mccormick, Stephanie A. Richard, Laura E. Caulfield, Laura L. Pendergast, Jessica C. Seidman, Beena Koshy, Reeba Roshan, Rita Shrestha, Erling Svensen, Muneera Rasheed
Early Life Child Micronutrient Status, Maternal Reasoning, And A Nurturing Household Environment Have Persistent Influences On Child Cognitive Development At Age 5 Years: Results From Mal-Ed, Benjamin J J. Mccormick, Stephanie A. Richard, Laura E. Caulfield, Laura L. Pendergast, Jessica C. Seidman, Beena Koshy, Reeba Roshan, Rita Shrestha, Erling Svensen, Muneera Rasheed
Department of Paediatrics and Child Health
Background: Child cognitive development is influenced by early-life insults and protective factors. To what extent these factors have a long-term legacy on child development and hence fulfillment of cognitive potential is unknown.
Objective: The aim of this study was to examine the relation between early-life factors (birth to 2 y) and cognitive development at 5 y.
Methods: Observational follow-up visits were made of children at 5 y, previously enrolled in the community-based MAL-ED longitudinal cohort. The burden of enteropathogens, prevalence of illness, complementary diet intake, micronutrient status, and household and maternal factors from birth to 2 y were extensively measured …
The Incidence, Aetiology, And Adverse Clinical Consequences Of Less Severe Diarrhoeal Episodes Among Infants And Children Residing In Low-Income And Middle-Income Countries: A 12-Month Case-Control Study As A Follow-On To The Global Enteric Multicenter Study (Gems), Karen L. Kotloff, Dilruba Nasrin, William C. Blackwelder, Yukun Wu, Tamer Farag, Sandra Panchalingham, Samba O. Sow, Anita K. M. Zaidi, Shahida Qureshi, Farheen Quadri
The Incidence, Aetiology, And Adverse Clinical Consequences Of Less Severe Diarrhoeal Episodes Among Infants And Children Residing In Low-Income And Middle-Income Countries: A 12-Month Case-Control Study As A Follow-On To The Global Enteric Multicenter Study (Gems), Karen L. Kotloff, Dilruba Nasrin, William C. Blackwelder, Yukun Wu, Tamer Farag, Sandra Panchalingham, Samba O. Sow, Anita K. M. Zaidi, Shahida Qureshi, Farheen Quadri
Department of Paediatrics and Child Health
Background: Diarrheal diseases remain a leading cause of illness and death among children younger than 5 years in low-income and middle-income countries. The Global Enteric Multicenter Study (GEMS) has described the incidence, aetiology, and sequelae of medically attended moderate-to-severe diarrhoea (MSD) among children aged 0-59 months residing in censused populations in sub-Saharan Africa and south Asia, where most child deaths occur. To further characterise this disease burden and guide interventions, we extended this study to include children with episodes of less-severe diarrhoea (LSD) seeking care at health centres serving six GEMS sites.
Methods: We report a 1-year, multisite, age-stratified, matched …
Setting Health Research Priorities Using The Chnri Method: Vii. A Review Of The First 50 Applications Of The Chnri Method, Igor Rudan, Sachiyo Yoshida, Kit Yee Chan, Devi Sridhar, Kerri Wazny, Harish Nair, Aziz Sheikh, Mark Tomlinson, Joy E. Lawn, Zulfiqar Ahmed Bhutta
Setting Health Research Priorities Using The Chnri Method: Vii. A Review Of The First 50 Applications Of The Chnri Method, Igor Rudan, Sachiyo Yoshida, Kit Yee Chan, Devi Sridhar, Kerri Wazny, Harish Nair, Aziz Sheikh, Mark Tomlinson, Joy E. Lawn, Zulfiqar Ahmed Bhutta
Department of Paediatrics and Child Health
Background: Several recent reviews of the methods used to set research priorities have identified the CHNRI method (acronym derived from the "Child Health and Nutrition Research Initiative") as an approach that clearly became popular and widely used over the past decade. In this paper we review the first 50 examples of application of the CHNRI method, published between 2007 and 2016, and summarize the most important messages that emerged from those experiences.
Methods: We conducted a literature review to identify the first 50 examples of application of the CHNRI method in chronological order. We searched Google Scholar, PubMed and so-called …
Causal Pathways From Enteropathogens To Environmental Enteropathy: Findings From The Mal-Ed Birth Cohort Study, Margaret N. Kosek, Zulfiqar Ahmed Bhutta, Anita K. M. Zaidi, Imran Ahmed, Syed Asad Ali, Muneera Rasheed, Sajid Bashir Soofi, Ali Turab, Didar Alam, Shahida Qureshi
Causal Pathways From Enteropathogens To Environmental Enteropathy: Findings From The Mal-Ed Birth Cohort Study, Margaret N. Kosek, Zulfiqar Ahmed Bhutta, Anita K. M. Zaidi, Imran Ahmed, Syed Asad Ali, Muneera Rasheed, Sajid Bashir Soofi, Ali Turab, Didar Alam, Shahida Qureshi
Department of Paediatrics and Child Health
Background: Environmental enteropathy (EE), the adverse impact of frequent and numerous enteric infections on the gut resulting in a state of persistent immune activation and altered permeability, has been proposed as a key determinant of growth failure in children in low- and middle-income populations. A theory-driven systems model to critically evaluate pathways through which enteropathogens, gut permeability, and intestinal and systemic inflammation affect child growth was conducted within the framework of the Etiology, Risk Factors and Interactions of Enteric Infections and Malnutrition and the Consequences for Child Health and Development (MAL-ED) birth cohort study that included children from eight countries. …
Epidemiology And Impact Of Campylobacter Infection In Children In 8 Low-Resource Settings: Results From The Mal-Ed Study, Shahida Qureshi, Aneeta Hotwani, Sadia Shakoor, (Mal-Ed) Network Investigators, Imran Ahmed, Didar Alam, Syed Asad Ali, Zulfiqar Ahmed Bhutta, Muneera Rasheed, Sajid Bashir Soofi, Ali Turab, Anita K. M. Zaidi
Epidemiology And Impact Of Campylobacter Infection In Children In 8 Low-Resource Settings: Results From The Mal-Ed Study, Shahida Qureshi, Aneeta Hotwani, Sadia Shakoor, (Mal-Ed) Network Investigators, Imran Ahmed, Didar Alam, Syed Asad Ali, Zulfiqar Ahmed Bhutta, Muneera Rasheed, Sajid Bashir Soofi, Ali Turab, Anita K. M. Zaidi
Department of Paediatrics and Child Health
Background: Enteropathogen infections have been associated with enteric dysfunction and impaired growth in children in low-resource settings. In a multisite birth cohort study (MAL-ED), we describe the epidemiology and impact of Campylobacter infection in the first 2 years of life.
Methods: Children were actively followed up until 24 months of age. Diarrheal and nondiarrheal stool samples were collected and tested by enzyme immunoassay for Campylobacter Stool and blood samples were assayed for markers of intestinal permeability and inflammation.
Results: A total of 1892 children had 7601 diarrheal and 26 267 nondiarrheal stool samples tested for Campylobacter We describe a high …
Norovirus Infection And Acquired Immunity In 8 Countries: Results From The Mal-Ed Study, Furqan Kabir, Adil Kalam, Pascal Bessong Pascal Bessong, Zulfiqar Ahmed Bhutta, Anita K. M. Zaidi, (Mal-Ed) Network Investigators, Imran Ahmed, Didar Alam, Syed Asad Ali, Shahida Qureshi, Muneera Rasheed, Sajid Bashir Soofi, Ali Turab, Aisha Khizar Yousafzai
Norovirus Infection And Acquired Immunity In 8 Countries: Results From The Mal-Ed Study, Furqan Kabir, Adil Kalam, Pascal Bessong Pascal Bessong, Zulfiqar Ahmed Bhutta, Anita K. M. Zaidi, (Mal-Ed) Network Investigators, Imran Ahmed, Didar Alam, Syed Asad Ali, Shahida Qureshi, Muneera Rasheed, Sajid Bashir Soofi, Ali Turab, Aisha Khizar Yousafzai
Department of Paediatrics and Child Health
Background: Norovirus is an important cause of childhood diarrhea. We present data from a longitudinal, multicountry study describing norovirus epidemiology during the first 2 years of life.
Methods: A birth cohort of 1457 children across 8 countries contributed 7077 diarrheal stools for norovirus testing. A subset of 199 children contributed additional asymptomatic samples (2307) and diarrheal stools (770), which were used to derive incidence rates and evaluate evidence for acquired immunity.
Results: Across sites, 89% of children experienced at least 1 norovirus infection before 24 months, and 22.7% of all diarrheal stools were norovirus positive. Severity of norovirus-positive diarrhea was …