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Daycare attendance significantly increases giardiasis (a parasitic infection) risk in white children. This setting facilitates person-to-person transmission, contributing to rising infection rates in the community.
Area of Science:
- Epidemiology
- Infectious Diseases
- Public Health
Background:
- Giardiasis is a common parasitic infection affecting children.
- Daycare settings are known to facilitate the spread of infectious diseases.
- Understanding transmission dynamics is crucial for public health interventions.
Purpose of the Study:
- To investigate the epidemiology of naturally occurring, non-epidemic giardiasis in a rural county.
- To identify risk factors and transmission patterns of giardiasis in children.
- To assess the role of daycare centers in the endemic spread of giardiasis.
Main Methods:
- Conducted five surveys of 1,731 children from 1971 to 1981.
- Collected stool samples to test for ova and parasites.
- Analyzed infection rates based on daycare attendance and demographic factors.
Main Results:
- White children in daycare centers had a 26% giardiasis attack rate.
- Daycare attendees were six times more likely to be infected upon entering first grade.
- A rising trend of giardiasis linked to working mothers and daycare was observed in white preschool children.
- Endemic levels of giardiasis could be maintained by as few as 100 infected children in a population of 18,000.
- Person-to-person transmission in daycare settings explained the increasing stool positivity rate (8%).
Conclusions:
- Daycare attendance is a significant risk factor for giardiasis in white children.
- Person-to-person transmission within daycare facilities is sufficient to maintain endemic giardiasis.
- Public health strategies should focus on daycare settings to control giardiasis spread.
Abstract:
Five surveys of 1,731 children for stool ova and parasites (1971 to 1981) in a rural county provide a unique perspective on naturally occurring, nonepidemic giardiasis. Currently white children in day care centers in Hampton County, South Carolina, experience attack rates of 26%. They enter the first grade with at least six times as much infection as those who do not attend day care. A trend toward more giardiasis linked to working mothers and day care is evident among white preschool children. This has not yet occurred among black preschool-aged children. These and other epidemiologic data indicate that as few as 100 children can maintain endemic levels of infection in a county of 18,000 residents. Person-to-person transmission in the day care setting is sufficient to explain this county's rising rate of stool positivity of infection (8% of all stool specimens submitted to the state laboratory).