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Using the MCRISP Network for Surveillance of Pediatric Exanthema in Child Care Centers. Disaster Med Public Health Prep 2022; 16:80-85. [DOI: 10.1017/dmp.2020.137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
ABSTRACTBackground:Systematic monitoring of exanthema is largely absent from public health surveillance despite emerging diseases and threats of bioterrorism. Michigan Child Care Related Infections Surveillance Program (MCRISP) is the first online program in child care centers to report pediatric exanthema.Methods:MCRISP aggregated daily counts of children sick, absent, or reported ill by parents. We extracted all MCRISP exanthema cases from October 1, 2014 through June 30, 2019. Cases were assessed with descriptive statistics and counts were used to construct epidemic curves.Results:360 exanthema cases were reported from 12,233 illnesses over 4.5 seasons. Children ages 13-35 months had the highest rash occurrence (45%, n = 162), followed by 36-59 months (41.7%, n = 150), 0-12 months (12.5%, n = 45), and kindergarten (0.8%, n = 3). Centers reported rashes of hand-foot-mouth disease (50%, n = 180), nonspecific rash without fever (15.3%, n = 55), hives (8.1%, n = 29), fever with nonspecific rash (6.9%, n = 25), roseola (3.3%, n = 12), scabies (2.5%, n = 9), scarlet fever (2.5%, n = 9), impetigo (2.2%, n = 8), abscess (1.95, n = 7), viral exanthema without fever (1.7%, n = 6), varicella (1.7%, n = 6), pinworms (0.8%, n = 3), molluscum (0.6%, n = 2), cellulitis (0.6%, n = 2), ringworm (0.6%, n = 2), and shingles (0.2%, n = 1).Conclusion:Child care surveillance networks have the potential to act as sentinel public health tools for surveillance of pediatric exanthema outbreaks.
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DeJonge PM, Gribbin W, Gaughan A, Chedid K, Martin ET, Miller AL, Hashikawa AN. Expanding Surveillance Toward Sharing Data with the Community: Qualitative Insights from a Childcare Center Illness Surveillance Program. Health Secur 2021; 19:262-270. [PMID: 33956525 DOI: 10.1089/hs.2020.0069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Childcare attendance is a recognized independent risk factor for pediatric infectious diseases due to the pathogen-sharing behaviors of young children and the crowded environments of childcare programs. The Michigan Child Care Related Infections Surveillance Program (MCRISP) is a novel online illness surveillance network used by community childcare centers to track disease incidence. It has been used to warn local public health departments about emerging outbreaks. The flow of data from MCRISP, however, remains largely unidirectional-from data reporter to public health researchers. With the intent to ultimately improve the system for users, we wanted to better understand how community illness data collected by MCRISP might best benefit childcare stakeholders themselves. Using a ground-up design approach, we conducted a series of focus groups among childcare directors participating in MCRISP. All primary data reporters from each of the 30 MCRISP-affiliated childcare centers were eligible to participate in the focus groups. A thematic assessment from the focus groups revealed that participants wanted surveillance system improvements that would (1) support subjective experiences with objective data, (2) assist with program decision making, (3) provide educational resources, and (4) prioritize the user's experience. Our findings support a framework by which community disease surveillance networks can move toward greater transparency and 2-way data flow. Ultimately, a more mutually beneficial surveillance system improves stakeholder engagement, provides opportunities for rapid mitigation strategies, and can help allocate timely resources in responding to emerging outbreaks and pandemics.
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Affiliation(s)
- Peter M DeJonge
- Peter M. DeJonge, MPH, and Khalil Chedid, MD, MPH, are PhD Candidates, Department of Epidemiology; Abigail Gaughan is an Undergraduate Student; Emily T. Martin, PhD, MPH, is an Associate Professor, Department of Epidemiology; and Alison L. Miller, PhD, is an Associate Professor, Department of Health Behavior and Health Education; all at the University of Michigan School of Public Health, Ann Arbor, MI. William Gribbin, MS, is a Medical Student and Andrew N. Hashikawa, MD, MPH, is an Associate Professor, Department of Emergency Medicine and Department of Pediatrics; both at the University of Michigan Medical School, Ann Arbor, MI
| | - William Gribbin
- Peter M. DeJonge, MPH, and Khalil Chedid, MD, MPH, are PhD Candidates, Department of Epidemiology; Abigail Gaughan is an Undergraduate Student; Emily T. Martin, PhD, MPH, is an Associate Professor, Department of Epidemiology; and Alison L. Miller, PhD, is an Associate Professor, Department of Health Behavior and Health Education; all at the University of Michigan School of Public Health, Ann Arbor, MI. William Gribbin, MS, is a Medical Student and Andrew N. Hashikawa, MD, MPH, is an Associate Professor, Department of Emergency Medicine and Department of Pediatrics; both at the University of Michigan Medical School, Ann Arbor, MI
| | - Abigail Gaughan
- Peter M. DeJonge, MPH, and Khalil Chedid, MD, MPH, are PhD Candidates, Department of Epidemiology; Abigail Gaughan is an Undergraduate Student; Emily T. Martin, PhD, MPH, is an Associate Professor, Department of Epidemiology; and Alison L. Miller, PhD, is an Associate Professor, Department of Health Behavior and Health Education; all at the University of Michigan School of Public Health, Ann Arbor, MI. William Gribbin, MS, is a Medical Student and Andrew N. Hashikawa, MD, MPH, is an Associate Professor, Department of Emergency Medicine and Department of Pediatrics; both at the University of Michigan Medical School, Ann Arbor, MI
| | - Khalil Chedid
- Peter M. DeJonge, MPH, and Khalil Chedid, MD, MPH, are PhD Candidates, Department of Epidemiology; Abigail Gaughan is an Undergraduate Student; Emily T. Martin, PhD, MPH, is an Associate Professor, Department of Epidemiology; and Alison L. Miller, PhD, is an Associate Professor, Department of Health Behavior and Health Education; all at the University of Michigan School of Public Health, Ann Arbor, MI. William Gribbin, MS, is a Medical Student and Andrew N. Hashikawa, MD, MPH, is an Associate Professor, Department of Emergency Medicine and Department of Pediatrics; both at the University of Michigan Medical School, Ann Arbor, MI
| | - Emily T Martin
- Peter M. DeJonge, MPH, and Khalil Chedid, MD, MPH, are PhD Candidates, Department of Epidemiology; Abigail Gaughan is an Undergraduate Student; Emily T. Martin, PhD, MPH, is an Associate Professor, Department of Epidemiology; and Alison L. Miller, PhD, is an Associate Professor, Department of Health Behavior and Health Education; all at the University of Michigan School of Public Health, Ann Arbor, MI. William Gribbin, MS, is a Medical Student and Andrew N. Hashikawa, MD, MPH, is an Associate Professor, Department of Emergency Medicine and Department of Pediatrics; both at the University of Michigan Medical School, Ann Arbor, MI
| | - Alison L Miller
- Peter M. DeJonge, MPH, and Khalil Chedid, MD, MPH, are PhD Candidates, Department of Epidemiology; Abigail Gaughan is an Undergraduate Student; Emily T. Martin, PhD, MPH, is an Associate Professor, Department of Epidemiology; and Alison L. Miller, PhD, is an Associate Professor, Department of Health Behavior and Health Education; all at the University of Michigan School of Public Health, Ann Arbor, MI. William Gribbin, MS, is a Medical Student and Andrew N. Hashikawa, MD, MPH, is an Associate Professor, Department of Emergency Medicine and Department of Pediatrics; both at the University of Michigan Medical School, Ann Arbor, MI
| | - Andrew N Hashikawa
- Peter M. DeJonge, MPH, and Khalil Chedid, MD, MPH, are PhD Candidates, Department of Epidemiology; Abigail Gaughan is an Undergraduate Student; Emily T. Martin, PhD, MPH, is an Associate Professor, Department of Epidemiology; and Alison L. Miller, PhD, is an Associate Professor, Department of Health Behavior and Health Education; all at the University of Michigan School of Public Health, Ann Arbor, MI. William Gribbin, MS, is a Medical Student and Andrew N. Hashikawa, MD, MPH, is an Associate Professor, Department of Emergency Medicine and Department of Pediatrics; both at the University of Michigan Medical School, Ann Arbor, MI
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Effect of Definitions of Acute Gastroenteritis Episodes Using Symptom Diaries in Paediatric Cohorts: A Systematic Review. J Pediatr Gastroenterol Nutr 2020; 70:e54-e58. [PMID: 31834113 DOI: 10.1097/mpg.0000000000002584] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Estimates of acute gastroenteritis (AGE) burden are difficult to compare between studies because of inconsistent definitions describing this illness. AGE definitions used in prospective, community-based childhood cohort studies were identified by searching databases for studies that collected daily observations of AGE symptoms. Disease definitions and refractory periods were extracted. Data from the Australian community-based Observational Research in Childhood Infectious Diseases birth cohort were used to calculate AGE incidence and duration using identified AGE definitions, and the World Health Organization definition for diarrhoea. Eight distinct AGE definitions were identified. All included loose stools and 7 included vomiting as symptoms. The refractory period separating episodes ranged from 1 to 21 days. When applied to the Observational Research in Childhood Infectious Diseases dataset, AGE incidence ranged from 0.8 to 2.6 episodes per child-year-at-risk, a 3-fold relative difference. Direct comparisons of rates from different cohorts can only be undertaken if a standard definition for AGE is adopted.
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King CL, Leask J. Parental disease prevention health beliefs and triggers for keeping children home from childcare-a qualitative study in Sydney, Australia. Child Care Health Dev 2018. [PMID: 28620959 DOI: 10.1111/cch.12481] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Infectious diseases cause considerable morbidity and mortality in children less than 5 years of age. Children attending childcare centres are at increased risk of contracting infections. It is of public health interest to understand what triggers and underpins parental decisions to send an unwell child to childcare, with the obvious attendant risks to other children and childcare staff as well as the affected child. This study aimed to examine parents' disease prevention health beliefs and practices with a particular focus on how these factors influence childcare attendance decisions. METHODS Semistructured, in-depth interviews were conducted between June 2009 and May 2011 with parents who had at least one child under 5 years of age enrolled in a childcare centre. Six centres in the metropolitan area of Sydney, Australia, were selected to include parents from a range of demographic and socio-economic backgrounds. RESULTS Forty-two interviews were conducted, recorded, and transcribed. Themes emerging from the data included "vitamin dirt," contagion, and contagion prevention and control. These interacted with parents' decision-making about childcare attendance, and parents made choices in a complex context of obligations to their child, social contract obligations to others, peer expectations, and the need to work. Vaccination received only scant mention as a preventive health measure. Decision-making by parents concerning childcare attendance was made without reference to any external guidelines. CONCLUSIONS This study provides insights into parental disease prevention beliefs, behaviours, and decision-making. It reveals a need for policies to support parents with unwell children. In addition, resources and educative efforts to raise awareness of vaccination as a preventive health measure, and awareness of infectious disease contagion more broadly, would assist in providing parents with a greater evidence base for making decisions about childcare attendance when their child is unwell.
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Affiliation(s)
- C L King
- National Centre for Immunisation Research and Surveillance, The Children's Hospital at Westmead, Sydney, NSW, Australia.,Discipline of Child and Adolescent Health, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - J Leask
- School of Public Health, Sydney Medical School and Sydney Nursing School, University of Sydney, Sydney, NSW, Australia
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Rattanaumpawan P, Boonyasiri A, Vong S, Thamlikitkul V. Systematic review of electronic surveillance of infectious diseases with emphasis on antimicrobial resistance surveillance in resource-limited settings. Am J Infect Control 2018; 46:139-146. [PMID: 29029814 DOI: 10.1016/j.ajic.2017.08.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 08/07/2017] [Accepted: 08/07/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND Electronic surveillance of infectious diseases involves rapidly collecting, collating, and analyzing vast amounts of data from interrelated multiple databases. Although many developed countries have invested in electronic surveillance for infectious diseases, the system still presents a challenge for resource-limited health care settings. METHODS We conducted a systematic review by performing a comprehensive literature search on MEDLINE (January 2000-December 2015) to identify studies relevant to electronic surveillance of infectious diseases. Study characteristics and results were extracted and systematically reviewed by 3 infectious disease physicians. RESULTS A total of 110 studies were included. Most surveillance systems were developed and implemented in high-income countries; less than one-quarter were conducted in low-or middle-income countries. Information technologies can be used to facilitate the process of obtaining laboratory, clinical, and pharmacologic data for the surveillance of infectious diseases, including antimicrobial resistance (AMR) infections. These novel systems require greater resources; however, we found that using electronic surveillance systems could result in shorter times to detect targeted infectious diseases and improvement of data collection. CONCLUSIONS This study highlights a lack of resources in areas where an effective, rapid surveillance system is most needed. The availability of information technology for the electronic surveillance of infectious diseases, including AMR infections, will facilitate the prevention and containment of such emerging infectious diseases.
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Affiliation(s)
- Pinyo Rattanaumpawan
- Division of Infectious Diseases and Tropical Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Adhiratha Boonyasiri
- Division of Infectious Diseases and Tropical Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Sirenda Vong
- World Health Organization Regional Office for South-East Asia, New Delhi, India
| | - Visanu Thamlikitkul
- Division of Infectious Diseases and Tropical Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
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Schellpfeffer N, Collins A, Brousseau DC, Martin ET, Hashikawa A. Web-Based Surveillance of Illness in Childcare Centers. Health Secur 2017; 15:463-472. [PMID: 28937791 DOI: 10.1089/hs.2016.0124] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
School absenteeism is an inefficient and unspecific metric for measuring community illness and does not provide surveillance during summertime. Web-based biosurveillance of childcare centers may represent a novel way to efficiently monitor illness outbreaks year-round. A web-based biosurveillance program ( sickchildcare.org ) was created and implemented in 4 childcare centers in a single Michigan county. Childcare providers were trained to report sick children who required exclusion or had parent-reported absences due to illness. Deidentified data on age range, number of illnesses, and illness categories were collected. Weekly electronic reports were sent to the county public health department. Data for reports were gathered beginning in December 2013 and were summarized using descriptive statistics. A total of 385 individual episodes of illness occurred during the study period. Children with reported illness were infants (16%, n = 61), toddlers (38%, n = 148), and preschoolers (46%, n = 176). Illness categories included: fever (30%, n = 116), gastroenteritis (30%, n = 115), influenzalike illness (8%, n = 32), cold without fever (13%, n = 51), rash (7%, n = 26), conjunctivitis (1%, n = 3), ear infection (1%, n = 5), and other (10%, n = 37). The majority of reports were center exclusions (55%, n = 214); others were absences (45%, n = 171). The detection of a gastroenteritis outbreak by web-based surveillance during winter 2013-14 preceded county health reports by 3 weeks; an additional outbreak of hand-foot-mouth disease was detected during June 2014 when standard school-based surveillance was not available. Web-based biosurveillance of illness in childcare centers represents a novel and feasible method to detect disease trends earlier and year-round compared to standard school-based disease surveillance.
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Optimising decision making on illness absenteeism due to fever and common infections within childcare centres: development of a multicomponent intervention and study protocol of a cluster randomised controlled trial. BMC Public Health 2017; 18:61. [PMID: 28747169 PMCID: PMC5530501 DOI: 10.1186/s12889-017-4602-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 07/17/2017] [Indexed: 12/30/2022] Open
Abstract
Background Evidence has shown that children 0-4 year-old attending childcare are prone to acquire infections compared to children cared for at home, with fever being the most common symptom. Illness absenteeism due to fever and common infections is substantial and mostly driven by unrealistic concerns and negative attitude towards fever of both childcare staff and parents, resulting in illness absenteeism from childcare, work absenteeism among parents and healthcare service use. The objective of this study is to optimise decision making among childcare staff on illness absenteeism due to fever and common infections in childcare. Underlying determinants of behavioural change were targeted by means of a multicomponent intervention. Methods A multicomponent intervention was developed to improve decision making, using the stepwise approach of Intervention Mapping, and in close collaboration with stakeholders and experts. The intervention consisted of 1) a two-hour educational session on fever among childcare staff; 2) an online video for childcare staff and parents emphasising key information of the educational session; 3) a decision tool for childcare staff and parents in the format of a traffic light system to estimate the severity of illness and corresponding advices for childcare staff and parents; 4) an information booklet regarding childhood fever, common infections, and self-management strategies for childcare staff and parents. The multicomponent intervention will be evaluated in a cluster randomised trial with a 12-week follow-up period and absenteeism due to illness (defined as the percentage of childcare days absent due to illness on the total of childcare days during a 12-week period) as primary outcome measure. Secondary outcome measures are: incidence rate and duration of illness episodes, knowledge, attitude, self-efficacy, and risk perception on fever and common infections of childcare staff and parents, healthcare service use in general and paracetamol use, and work absenteeism of parents. Discussion This study aims to develop a multicomponent intervention and to evaluate to what extent illness absenteeism due to fever and common infections can be affected by implementing a multicomponent intervention addressing decision making and underlying determinants among childcare staff and parents of children attending daycare. Trial registration NTR6402 (registered on 21-apr-2017). Electronic supplementary material The online version of this article (doi:10.1186/s12889-017-4602-3) contains supplementary material, which is available to authorized users.
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Pijnacker R, Mughini-Gras L, Heusinkveld M, Roelfsema J, van Pelt W, Kortbeek T. Different risk factors for infection with Giardia lamblia assemblages A and B in children attending day-care centres. Eur J Clin Microbiol Infect Dis 2016; 35:2005-2013. [DOI: 10.1007/s10096-016-2753-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 08/08/2016] [Indexed: 11/30/2022]
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PIJNACKER R, MUGHINI-GRAS L, VENNEMA H, ENSERINK R, VAN DEN WIJNGAARD CC, KORTBEEK T, VAN PELT W. Characteristics of child daycare centres associated with clustering of major enteropathogens. Epidemiol Infect 2016; 144:2527-39. [PMID: 27483376 PMCID: PMC9150454 DOI: 10.1017/s0950268816001011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 02/12/2016] [Accepted: 05/02/2016] [Indexed: 01/05/2023] Open
Abstract
Insights into transmission dynamics of enteropathogens in children attending daycare are limited. Here we aimed at identifying daycare centre (DCC) characteristics associated with time-clustered occurrence of enteropathogens in DCC-attending children. For this purpose, we used the KIzSS network, which comprises 43 DCCs that participated in infectious disease surveillance in The Netherlands during February 2010-February 2013. Space-time scan statistics were used to identify clusters of rotavirus, norovirus, astrovirus, Giardia lamblia and Cryptosporidium spp. in a two-dimensional DCC characteristic space constructed using canonical correlation analysis. Logistic regression models were then used to further identify DCC characteristics associated with increased or decreased odds for clustering of enteropathogens. Factors associated with increased odds for enteropathogen clustering in DCCs were having indoor/outdoor paddling pools or sandpits, owning animals, high numbers of attending children, and reporting outbreaks to local health authorities. Factors associated with decreased odds for enteropathogen clustering in DCCs were cleaning child potties in designated waste disposal stations, cleaning vomit with chlorine-based products, daily cleaning of toys, extra cleaning of toys during a suspected outbreak, and excluding children with gastroenteritis. These factors provide targets for reducing the burden of gastrointestinal morbidity associated with time-clustered occurrence of major enteropathogens in DCC attendees.
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Affiliation(s)
- R. PIJNACKER
- Center for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), The Netherlands
| | - L. MUGHINI-GRAS
- Center for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), The Netherlands
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
| | - H. VENNEMA
- Center for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), The Netherlands
| | - R. ENSERINK
- Center for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), The Netherlands
| | - C. C. VAN DEN WIJNGAARD
- Center for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), The Netherlands
| | - T. KORTBEEK
- Center for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), The Netherlands
| | - W. VAN PELT
- Center for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), The Netherlands
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Marked Decrease in Rotavirus Detections Among Preschool Children Unvaccinated for Rotavirus in the Netherlands, 2014. Pediatr Infect Dis J 2016; 35:809-11. [PMID: 27097349 DOI: 10.1097/inf.0000000000001162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Rotavirus detection rates among preschool children sampled irrespective of symptoms during the rotavirus season (January-April) in the Netherlands were significantly lower in 2014 (0.6%) than in 2010 (11.2%), 2011 (6.9%), 2012 (6.8%) and 2013 (6.7%). This supports previous observations of a genuine drop in rotavirus circulation (without rotavirus vaccination) rather than a milder disease course.
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Abstract
BACKGROUND Influenza-like illness (ILI) is the leading cause of medical consultation amongst preschool children, who may contribute to spreading ILI-causing agents within the household. We aimed to determine the societal burden (incidence, health-care consumption and productivity loss) and correlates of ILI in households with preschool children. METHODS A survey was performed in the Netherlands during October 2012 to October 2014. Monthly, 2000 households with children younger than 4 years were invited to report their symptoms and related medical care, productivity loss and putative risk exposures for 1 preschool child and 1 parent. RESULTS Eight thousand seven hundred and sixty-eight child-parent pairs were enrolled. ILI incidence was 2.81 episodes/child-year and 1.72 episodes/parent-year. Amongst those with ILI, health-care utilization was 35.7% (children) and 17.7% (parents). Work absenteeism was 45.7% (median 2 workdays lost) and day-care absenteeism was 22.8% (median 1 day missed). Chronic respiratory conditions, developmental disabilities, parental occupation in health care/child care, having a sibling and attending day care for ≤12 months increased childhood ILI risk. Parental ILI risk increased with having chronic respiratory conditions, developmentally disabled day-care-attending children and female gender in interaction with unemployment and multiple day-care-attending children. Breastfeeding infants 6-month-old or younger and attending day care for >24 months decreased childhood ILI risk. Pregnancy, occupation in health care and having ≥3 children decreased parental ILI risk. Parents of ILI-affected children had a concurrent 4-fold higher ILI risk. CONCLUSION ILI in households with preschool children has a considerable societal impact. Risk-mitigating initiatives seem justified for day-care attendees, mothers, people with chronic respiratory conditions, and children with developmental disabilities. Children attending day care for >2 years acquire some protection to ILI.
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Ashton RA, Kefyalew T, Batisso E, Awano T, Kebede Z, Tesfaye G, Mesele T, Chibsa S, Reithinger R, Brooker SJ. The usefulness of school-based syndromic surveillance for detecting malaria epidemics: experiences from a pilot project in Ethiopia. BMC Public Health 2016; 16:20. [PMID: 26749325 PMCID: PMC4707000 DOI: 10.1186/s12889-015-2680-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 12/22/2015] [Indexed: 01/09/2023] Open
Abstract
Background Syndromic surveillance is a supplementary approach to routine surveillance, using pre-diagnostic and non-clinical surrogate data to identify possible infectious disease outbreaks. To date, syndromic surveillance has primarily been used in high-income countries for diseases such as influenza -- however, the approach may also be relevant to resource-poor settings. This study investigated the potential for monitoring school absenteeism and febrile illness, as part of a school-based surveillance system to identify localised malaria epidemics in Ethiopia. Methods Repeated cross-sectional school- and community-based surveys were conducted in six epidemic-prone districts in southern Ethiopia during the 2012 minor malaria transmission season to characterise prospective surrogate and syndromic indicators of malaria burden. Changes in these indicators over the transmission season were compared to standard indicators of malaria (clinical and confirmed cases) at proximal health facilities. Subsequently, two pilot surveillance systems were implemented, each at ten sites throughout the peak transmission season. Indicators piloted were school attendance recorded by teachers, or child-reported recent absenteeism from school and reported febrile illness. Results Lack of seasonal increase in malaria burden limited the ability to evaluate sensitivity of the piloted syndromic surveillance systems compared to existing surveillance at health facilities. Weekly absenteeism was easily calculated by school staff using existing attendance registers, while syndromic indicators were more challenging to collect weekly from schoolchildren. In this setting, enrolment of school-aged children was found to be low, at 54 %. Non-enrolment was associated with low household wealth, lack of parental education, household size, and distance from school. Conclusions School absenteeism is a plausible simple indicator of unusual health events within a community, such as malaria epidemics, but the sensitivity of an absenteeism-based surveillance system to detect epidemics could not be rigorously evaluated in this study. Further piloting during a demonstrated increase in malaria transmission within a community is recommended.
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Affiliation(s)
- Ruth A Ashton
- Malaria Consortium, London, UK. .,Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK.
| | | | - Esey Batisso
- Malaria Consortium Southern Nations, Nationalities and People's Regional State sub-office, Hawassa, Ethiopia.
| | - Tessema Awano
- Malaria Consortium Southern Nations, Nationalities and People's Regional State sub-office, Hawassa, Ethiopia.
| | | | | | - Tamiru Mesele
- Southern Nations, Nationalities and People's Regional State Health Bureau, Hawassa, Ethiopia.
| | - Sheleme Chibsa
- President's Malaria Initiative, U.S. Agency for International Development, Addis Ababa, Ethiopia.
| | - Richard Reithinger
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK. .,RTI International, Washington, DC, USA.
| | - Simon J Brooker
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK.
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Koningstein M, Leenen MA, Mughini-Gras L, Scholts RMC, van Huisstede-Vlaanderen KW, Enserink R, Zuidema R, Kooistra-Smid MAMD, Veldman K, Mevius D, van Pelt W. Prevalence and Risk Factors for Colonization With Extended-Spectrum Cephalosporin-Resistant Escherichia coli in Children Attending Daycare Centers: A Cohort Study in the Netherlands. J Pediatric Infect Dis Soc 2015; 4:e93-9. [PMID: 26407274 DOI: 10.1093/jpids/piv042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 06/24/2015] [Indexed: 11/14/2022]
Abstract
BACKGROUND The purpose of this study was to determine the prevalence and risk factors for colonization with extended-spectrum cephalosporin-resistant (ESC-R) Escherichia coli in daycare center (DCC)-attending children. METHODS This is a prospective cohort study including 44 DCCs in the Netherlands, combining DCC characteristics and monthly collected stool samples from their attendees, and was performed in 2010-2012. During a 22-month study period, 852 stool samples were collected and screened for ESC-R E coli. Risk factors were studied using logistic regression analysis. RESULTS In DCC-attending children (<4 years old), the overall prevalence of ESC-R E coli was 4.5%, and it was 8% in <1-year-old attendees. Among the 38 children carrying ESC-R E coli, the most common types were blaCMY-2 (26%), blaCTX-M-1 (16%), and chromosomal AmpC type 3 promoter mutants (13%). Extended-spectrum cephalosporin-resistant E coli was less common in DCCs where stricter hygiene protocols were enforced, eg, not allowing ill children to enter the DCC (odds ratio [OR], 0.34; 95% confidence interval [CI], 0.14-0.84), performing extra checks on handwashing of ill children (OR, 0.42; 95% CI, 0.20-0.87), and reporting suspected outbreaks to local health authorities (OR, 0.27; 95% CI, 0.11-0.69). CONCLUSIONS The distribution of ESC-R E coli types in DCCs differs from that of the general population. Extended-spectrum cephalosporin-resistant E coli carriage in DCC-attending children is associated with the hygiene policies enforced in the DCC. Although our results are not conclusive enough to change current DCC practice beyond ensuring compliance with standing policies, they generated hypotheses and defined the degree of ESC resistance among DCC attendees, which may influence empiric antibiotic therapy choices, and tracked the increasing trend in ESC resistance.
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Affiliation(s)
- Maike Koningstein
- Julius Center for Health Sciences and Primary Care, University Medical Centre Utrecht, the Netherlands Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Margriet A Leenen
- Julius Center for Health Sciences and Primary Care, University Medical Centre Utrecht, the Netherlands Faculty of Medicine, Utrecht University, the Netherlands
| | - Lapo Mughini-Gras
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands Department of Infectious Diseases and Immunology, Utrecht University, Faculty of Veterinary Medicine, the Netherlands
| | - Rianne M C Scholts
- Certe - Laboratory for Infectious Diseases, Department of Research and Development, Groningen, the Netherlands
| | | | - Remko Enserink
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Rody Zuidema
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Mirjam A M D Kooistra-Smid
- Certe - Laboratory for Infectious Diseases, Department of Research and Development, Groningen, the Netherlands Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Kees Veldman
- Department of Bacteriology and TSEs, Central Veterinary Institute of Wageningen UR, Lelystad, the Netherlands
| | - Dik Mevius
- Department of Bacteriology and TSEs, Central Veterinary Institute of Wageningen UR, Lelystad, the Netherlands Department of Infectious Diseases and Immunology, Utrecht University, Faculty of Veterinary Medicine, the Netherlands
| | - Wilfrid van Pelt
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
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Rudant J, Lightfoot T, Urayama KY, Petridou E, Dockerty JD, Magnani C, Milne E, Spector LG, Ashton LJ, Dessypris N, Kang AY, Miller M, Rondelli R, Simpson J, Stiakaki E, Orsi L, Roman E, Metayer C, Infante-Rivard C, Clavel J. Childhood acute lymphoblastic leukemia and indicators of early immune stimulation: a Childhood Leukemia International Consortium study. Am J Epidemiol 2015; 181:549-62. [PMID: 25731888 DOI: 10.1093/aje/kwu298] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Accepted: 09/29/2014] [Indexed: 01/04/2023] Open
Abstract
The associations between childhood acute lymphoblastic leukemia (ALL) and several proxies of early stimulation of the immune system, that is, day-care center attendance, birth order, maternally reported common infections in infancy, and breastfeeding, were investigated by using data from 11 case-control studies participating in the Childhood Leukemia International Consortium (enrollment period: 1980-2010). The sample included 7,399 ALL cases and 11,181 controls aged 2-14 years. The data were collected by questionnaires administered to the parents. Pooled odds ratios and 95% confidence intervals were estimated by unconditional logistic regression adjusted for age, sex, study, maternal education, and maternal age. Day-care center attendance in the first year of life was associated with a reduced risk of ALL (odds ratio = 0.77, 95% confidence interval: 0.71, 0.84), with a marked inverse trend with earlier age at start (P < 0.0001). An inverse association was also observed with breastfeeding duration of 6 months or more (odds ratio = 0.86, 95% confidence interval: 0.79, 0.94). No significant relationship with a history of common infections in infancy was observed even though the odds ratio was less than 1 for more than 3 infections. The findings of this large pooled analysis reinforce the hypothesis that day-care center attendance in infancy and prolonged breastfeeding are associated with a decreased risk of ALL.
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15
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Ajrouche R, Rudant J, Orsi L, Petit A, Baruchel A, Lambilliotte A, Gambart M, Michel G, Bertrand Y, Ducassou S, Gandemer V, Paillard C, Saumet L, Blin N, Hémon D, Clavel J. Childhood acute lymphoblastic leukaemia and indicators of early immune stimulation: the Estelle study (SFCE). Br J Cancer 2015; 112:1017-26. [PMID: 25675150 PMCID: PMC4366894 DOI: 10.1038/bjc.2015.53] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 01/04/2015] [Accepted: 01/12/2015] [Indexed: 11/29/2022] Open
Abstract
Background: Factors related to early stimulation of the immune system (breastfeeding, proxies for exposure to infectious agents, normal delivery, and exposure to animals in early life) have been suggested to decrease the risk of childhood acute lymphoblastic leukaemia (ALL). Methods: The national registry-based case–control study, ESTELLE, was carried out in France in 2010–2011. Population controls were frequency matched with cases on age and gender. The participation rates were 93% for cases and 86% for controls. Data were obtained from structured telephone questionnaires administered to mothers. Odds ratios (OR) were estimated using unconditional regression models adjusted for age, gender, and potential confounders. Results: In all, 617 ALL and 1225 controls aged ⩾1 year were included. Inverse associations between ALL and early common infections (OR=0.8, 95% confidence interval (CI): 0.6, 1.0), non-first born (⩾3 vs 1; OR=0.7, 95% CI: 0.5, 1.0), attendance of a day-care centre before age 1 year (OR=0.7, 95% CI: 0.5, 1.0), breastfeeding (OR=0.8, 95% CI: 0.7, 1.0), and regular contact with pets (OR=0.8, 95% CI: 0.7, 1.0) in infancy were observed. Conclusions: The results support the hypothesis that conditions promoting the maturation of the immune system in infancy have a protective role with respect to ALL.
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Affiliation(s)
- R Ajrouche
- 1] Epidemiology of childhood and adolescent cancers, CRESS, INSERM U1153, Villejuif, France [2] Paris-Sud University, Le Kremlin Bicêtre, France
| | - J Rudant
- 1] Epidemiology of childhood and adolescent cancers, CRESS, INSERM U1153, Villejuif, France [2] Paris-Descartes University, Paris, France [3] RNHE-National Registry of Childhood Hematopoietic Malignancies, Villejuif, France
| | - L Orsi
- 1] Epidemiology of childhood and adolescent cancers, CRESS, INSERM U1153, Villejuif, France [2] Paris-Descartes University, Paris, France
| | - A Petit
- 1] AP-HP, Hôpital Armand Trousseau, Paris, France [2] Université Paris 6 Pierre et Marie Curie, Paris, France
| | - A Baruchel
- 1] AP-HP, Hôpital Robert Debré, Paris, France [2] Université Paris 7, Paris, France
| | | | - M Gambart
- Hôpital des Enfants, Toulouse, France
| | - G Michel
- AP-HM, Hôpital la Timone, Marseille, France
| | - Y Bertrand
- Institut d'Hématologie et d'Oncologie Pédiatrique, Lyon, France
| | - S Ducassou
- Hôpital Pellegrin Tripode, Bordeaux, France
| | | | - C Paillard
- Hôpital de Hautepierre, Strasbourg, France
| | - L Saumet
- Hôpital Arnaud de Villeneuve, Montpellier, France
| | - N Blin
- Hôpital Mère-Enfant, CHU-Nantes, Nantes, France
| | - D Hémon
- 1] Epidemiology of childhood and adolescent cancers, CRESS, INSERM U1153, Villejuif, France [2] Paris-Descartes University, Paris, France
| | - J Clavel
- 1] Epidemiology of childhood and adolescent cancers, CRESS, INSERM U1153, Villejuif, France [2] Paris-Descartes University, Paris, France [3] RNHE-National Registry of Childhood Hematopoietic Malignancies, Villejuif, France
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Abstract
The child day-care centre (DCC) is often considered as one risk factor for gastroenteritis (GE) rather than a complex setting in which the interplay of many factors may influence the epidemiology of GE. This study aimed to identify DCC-level risk factors for GE and major enteropathogen occurrence. A dynamic network of 100 and 43 DCCs participated in a syndromic and microbiological surveillance during 2010-2013. The weekly incidence of GE events and weekly prevalence of five major enteropathogens (rotavirus, norovirus, astrovirus, Giardia lamblia, Cryptosporidium hominis/parvum) were modelled per DCC using mixed-effects negative binomial/Poisson regression models. Sixteen hundred children were surveyed up to 3 years, during which 1829 GE episodes were reported and 5197 faecal samples were analysed. Identified risk factors were: large DCC capacity, crowding, having animals, nappy changing areas, sandpits, paddling pools, cleaning potties in normal sinks, cleaning vomit with paper towels (but without cleaner), mixing of staff between child groups, and staff members with multiple daily duties. Protective factors were: disinfecting fomites with chlorine, cleaning vomit with paper towels (and cleaner), daily cleaning of bed linen/toys, cohorting and exclusion policies for ill children and staff. Targeting these factors may reduce the burden of DCC-related GE.
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17
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Gastroenteritis attributable to 16 enteropathogens in children attending day care: significant effects of rotavirus, norovirus, astrovirus, Cryptosporidium and Giardia. Pediatr Infect Dis J 2015; 34:5-10. [PMID: 24983718 DOI: 10.1097/inf.0000000000000472] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Children attending day care experience substantial gastrointestinal morbidity due to circulating seasonal enteropathogens in the day-care environment. The lack of a distinct clinical presentation of gastroenteritis (GE) in these children, in combination with the high diversity of enteropathogenic agents, complicates the assessment of the individual contributions of enteropathogens that may cause GE. We aimed to estimate the proportion of day-care attendees experiencing GE that could be attributed to a range of enteropathogens circulating in day care in the Netherlands in 2010-2013. METHODS Using time-series data from a national laboratory-based and syndrome-based surveillance system in Dutch day-care centers and generalized estimating equation analysis, we modelled the variation in prevalence of 16 enteropathogens of bacterial (8), viral (5) and parasitic origin (3) circulating in day care to the variation of GE incidence among children attending day care. RESULTS Rotavirus, norovirus, astrovirus, Giardia and Cryptosporidium were significantly associated with GE morbidity among day-care attendees in our time-series analysis. Together, these enteropathogens accounted for 39% of the GE morbidity: 11% by rotavirus, 10% by norovirus, 8% by Giardia, 7% by astrovirus and 3% by Cryptosporidium. CONCLUSIONS We demonstrate that circulating viruses and parasites, rather than bacteria, contribute to seasonal GE experienced by children in day care.
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18
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Troullos E, Baird L, Jayawardena S. Common cold symptoms in children: results of an Internet-based surveillance program. J Med Internet Res 2014; 16:e144. [PMID: 24945090 PMCID: PMC4090373 DOI: 10.2196/jmir.2868] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 04/09/2014] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Conducting and analyzing clinical studies of cough and cold medications is challenging due to the rapid onset and short duration of the symptoms. The use of Internet-based surveillance tools is a new approach in clinical studies that is gradually becoming popular and may become a useful method of recruitment. As part of an initiative to assess the safety and efficacy of cough and cold ingredients in children 6-11 years of age, a surveillance program was proposed as a means to identify and recruit pediatric subjects for clinical studies. OBJECTIVE The objective of the study was to develop an Internet-based surveillance system and to assess the feasibility of using such a system to recruit children for common cold clinical studies, record the natural history of their cold symptoms, and determine the willingness of parents to have their children participate in clinical studies. METHODS Healthy potential subjects were recruited via parental contact online. During the 6-week surveillance period, parents completed daily surveys to record details of any cold symptoms in their children. If a child developed a cold, symptoms were followed via survey for 10 days. Additional questions evaluated the willingness of parents to have their children participate in a clinical study shortly after onset of symptoms. RESULTS The enrollment target of 248 children was reached in approximately 1 week. Children from 4 distinct geographic regions of the United States were recruited. Parents reported cold symptoms in 163 children, and 134 went on to develop colds. The most prevalent symptoms were runny nose, stuffed-up nose, and sneezing. The most severe symptoms were runny nose, stuffed-up nose, and sore/scratchy throat. The severity of most symptoms peaked 1-2 days after onset. Up to 54% of parents expressed willingness to bring a sick child to a clinical center shortly after the onset of symptoms. Parents found the Internet-based surveys easy to complete. CONCLUSIONS Internet-based surveillance and recruitment can be useful tools to follow colds in children and enroll subjects in clinical studies. However, study designs should account for a potentially high dropout rate and low rate of adherence to study procedures.
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Affiliation(s)
- Emanuel Troullos
- Pfizer Consumer Healthcare, Global Clinical Development, Madison, NJ, United States.
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19
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Enserink R, Scholts R, Bruijning-Verhagen P, Duizer E, Vennema H, de Boer R, Kortbeek T, Roelfsema J, Smit H, Kooistra-Smid M, van Pelt W. High detection rates of enteropathogens in asymptomatic children attending day care. PLoS One 2014; 9:e89496. [PMID: 24586825 PMCID: PMC3933542 DOI: 10.1371/journal.pone.0089496] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 01/21/2014] [Indexed: 12/18/2022] Open
Abstract
Background Gastroenteritis morbidity is high among children under the age of four, especially amongst those who attend day care. Objective To determine the prevalence of a range of enteropathogens in the intestinal flora of children attending day care and to relate their occurrence with characteristics of the sampled child and the sampling season. Methods We performed three years of enteropathogen surveillance in a network of 29 child day care centers in the Netherlands. The centers were instructed to take one fecal sample from ten randomly chosen children each month, regardless of gastrointestinal symptoms at time of sampling. All samples were analyzed for the molecular detection of 16 enteropathogenic bacteria, parasites and viruses by real-time multiplex PCR. Results Enteropathogens were detected in 78.0% of the 5197 fecal samples. Of the total, 95.4% of samples were obtained from children who had no gastroenteritis symptoms at time of sampling. Bacterial enteropathogens were detected most often (most prevalent EPEC, 19.9%), followed by parasitic enteropathogens (most prevalent: D. fragilis, 22.1%) and viral enteropathogens (most prevalent: norovirus, 9.5%). 4.6% of samples related to children that experienced symptoms of gastroenteritis at time of sampling. Only rotavirus and norovirus were significantly associated with gastroenteritis among day care attendees. Conclusions Our study indicates that asymptomatic infections with enteropathogens in day care attendees are not a rare event and that gastroenteritis caused by infections with these enteropathogens is only one expression of their presence.
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Affiliation(s)
- Remko Enserink
- Center for Infectious Disease Control (Epidemiology and Surveillance Unit), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
- * E-mail:
| | - Rianne Scholts
- Laboratory for Infectious Diseases, Department of Research and Development, Groningen, The Netherlands
| | - Patricia Bruijning-Verhagen
- Center for Infectious Disease Control (Epidemiology and Surveillance Unit), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Erwin Duizer
- Center for Infectious Disease Control (Laboratory for Infectious Diseases and Perinatal Screening), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Harry Vennema
- Center for Infectious Disease Control (Laboratory for Infectious Diseases and Perinatal Screening), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Richard de Boer
- Laboratory for Infectious Diseases, Department of Research and Development, Groningen, The Netherlands
| | - Titia Kortbeek
- Center for Infectious Disease Control (Laboratory for Infectious Diseases and Perinatal Screening), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Jeroen Roelfsema
- Center for Infectious Disease Control (Laboratory for Infectious Diseases and Perinatal Screening), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Henriette Smit
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Mirjam Kooistra-Smid
- Laboratory for Infectious Diseases, Department of Research and Development, Groningen, The Netherlands
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Wilfrid van Pelt
- Center for Infectious Disease Control (Epidemiology and Surveillance Unit), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
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20
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Abstract
BACKGROUND Studying day-care-associated infectious disease dynamics aids in formulating evidence-based guidelines for disease control, thereby supporting day-care centers in their continuous efforts to provide their child population with a safe and hygienic environment. The objective of this study was to estimate the (excess) infectious disease burden related to child day-care attendance in the Netherlands. METHODS A Dutch surveillance network of child day-care centers (DCCs) prospectively reported on infectious disease episodes and related use of health care among their child population on a daily basis from March 2010 to March 2012. RESULTS Gastroenteritis (387 per 1000 child-years) and influenza-like illness (247 per 1000 child-years) were the most frequently reported infectious diseases. DCCs reported these infectious diseases to occur twice as often among children aged 0-2 years compared with children aged 2-4 years. Antibiotic treatment was required in 6%, a general practitioner visit in 29% and hospitalization in 2% of infectious disease episodes. DCC incidences of gastroenteritis and influenza-like illness requiring children to visit a general practitioner were approximately twice as high as general population estimates for this age group. Part of the DCCs indicated to not always wash the hands of children before eating (34%) or after a toilet visit (15%) or to not always clean the toilet and kitchen areas (17%) on a daily basis. CONCLUSION The infectious disease risk associated with child day-care attendance is substantial, particularly among the very young attendees, in excess of general population estimates for this age group and potentially partly preventable.
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