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[Diarrheal disease among caregivers at children's day-care centers. A retrospective and seroepidemiologic study]
Insights
Diarrheal disease does not appear to be an occupational hazard for day-care caregivers. Studies found no increased incidence of diarrhea or Shigella antibodies among caregivers compared to the general population.
Area of Science:
- Infectious Disease Epidemiology
- Occupational Health
- Immunology
Background:
- Diarrheal diseases frequently spread within families, raising concerns about caregiver exposure in child day-care settings.
- Caregivers, especially those with very young children, may face heightened risks of contracting diarrhea.
- This study investigated diarrhea incidence and Shigella antibody levels in day-care caregivers.
Purpose of the Study:
- To determine if day-care caregivers experience higher rates of diarrhea compared to the general population.
- To assess if diarrhea incidence among caregivers correlates with the age groups of children in their care.
- To examine antibody levels to Shigella species as an indicator of past exposure in caregivers.
Main Methods:
- Retrospective cohort and seroepidemiological cross-sectional study designs were employed.
- Questionnaires were administered to 401 caregivers across WIZO day-care centers.
- Enzyme-linked immunosorbent assay (ELISA) measured Shigella sonnei and Shigella flexneri antibody levels in 110 caregivers.
Main Results:
- No statistically significant differences in diarrhea incidence or absenteeism were observed among caregivers based on the age groups of children they supervised.
- Diarrheal incidence was lower in caregivers compared to a general population control group.
- Shigella antibody levels did not differ significantly between caregivers and the control group.
Conclusions:
- The study found no evidence to support diarrhea as an occupational hazard for day-care caregivers.
- Lower incidence of diarrhea in caregivers suggests potential protective immunity developed through recurrent exposure.
- Caregivers may develop immunity to common diarrheal pathogens, mitigating occupational risk.
Abstract:
Diarrheal disease tends to spread from infected children to their families. Due to the increased risk of exposure, children's caregivers in day-care centers may have a higher incidence of diarrhea, particularly when caring for very young children. We therefore examined the incidence of diarrhea and antibodies to Shigella among caregivers in day-care centers, according to age groups of children in their care (< 18, 18-34, and > 35 months) and in comparison with the general population. 2 studies with a retrospective cohort and seroepidemiological cross-sectional design were carried out. Questionnaires were completed by 401 caregivers in 36% of all WIZO day-care centers. As a measure of past exposure to Shigella, levels of S. sonnei and S. flexneri antibodies were examined in the blood of 110 caregivers (ELISA method). There was a higher incidence of diarrhea among young children, increasing the potential exposure to diarrheal agents among their caregivers. Nevertheless, no statistically significant differences in diarrhea incidence were found among caregivers of the various age groups during the previous year (p = 0.768) and during the previous month (p = 0.319), nor in absenteeism due to diarrhea during the last month (p = 0.761). Levels of Shigella antibodies were similar among caregivers in all 3 groups. Diarrheal incidence was higher among women in the population control group than among caregivers during the previous year (p = 0.005) and month (p = 0.067). No statistically significant differences in levels of S. sonnei and S. flexneri antibodies were found between caregivers and women in the control group. There was no evidence that diarrhea is an occupational hazard for caregivers of young children. An explanation may be the development of protective immunity against common diarrheal agents due to recurrent exposure.