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Asymptomatic Children as a Missing Link in Preventing COVID-19 Transmission
Iraj Sedighi1, Roya Raeisi1, Jalaleddin Amiri1
1Department of Pediatrics, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
Insights
Asymptomatic children in close contact with COVID-19 positive parents have a significant infection rate. Monitoring these household contacts is crucial for public health strategies during the pandemic.
Area of Science:
- Epidemiology
- Infectious Diseases
- Public Health
Background:
- Investigating COVID-19 in asymptomatic children is vital for pandemic control.
- Understanding transmission dynamics in households informs public health interventions.
- This study focuses on asymptomatic children with symptomatic COVID-19-positive parents.
Purpose of the Study:
- To evaluate the incidence of coronavirus disease 2019 (COVID-19) infection in asymptomatic children.
- To assess transmission from symptomatic parents to their asymptomatic children.
- To identify predictors of COVID-19 transmission within households.
Main Methods:
- A cross-sectional study involving 175 asymptomatic children in close contact with COVID-19 cases.
- Reverse transcription polymerase chain reaction (RT-PCR) testing was used for diagnosis.
- Multiple logistic regression analysis identified transmission predictors.
Main Results:
- 30.29% (53/175) of asymptomatic children tested positive for COVID-19.
- Male index cases, rural dwellers, illiterate cases, and those with nasal congestion increased transmission risk.
- Specific factors in symptomatic parents significantly predicted viral transmission to children.
Conclusions:
- Asymptomatic COVID-19 infection is prevalent in children with close household contact to infected individuals.
- Continued monitoring of these pediatric household contacts is essential.
- Findings highlight the importance of considering children in household COVID-19 surveillance.
Background:
Investigating the prevalence of the coronavirus disease 2019 (COVID-19) infection in asymptomatic children who have been in close contact with symptomatic individuals is instrumental for refining public health approaches, protecting vulnerable populations, and mitigating the broader impact of the pandemic. Accordingly, this study aimed to evaluate the incidence of COVID-19 infection in asymptomatic children who had been in close contact with parents exhibiting COVID-19 symptoms. Study Design: A cross-sectional study.
Methods:
The present cross-sectional study was conducted on 175 asymptomatic children who had been in close contact with COVID-19 confirmed cases in Hamadan County from March 2021 to August 2021. Reverse transcription polymerase chain reaction (RT-PCR) testing was performed on all asymptomatic children who had been in close contact with an individual with COVID-19. Furthermore, multiple logistic regressions were conducted to determine the predictors of COVID-19 transmission from family members to children.
Results:
Out of the 175 children in close contact with index cases, 53 (30.29%) tested positive for COVID-19 through PCR. Regarding factors related to the index case, male cases (Adjusted odds ratio [AOR]=2.29; 95% confidence interval [CI]: 1.03-5.09, P=0.041), rural dwellers (AOR=3.22; 95% CI: 1.02-10.16, P=0.046), illiterate cases (AOR=8.45; 95% CI: 1.76-40.65, P=0.008), and cases presenting with nasal congestion symptoms (AOR=9.12; 95% CI: 2.22-37.40, P=0.002) were more prone to transmitting the virus to children who had close contact with them.
Conclusion:
The findings of the present study suggested that asymptomatic COVID-19 infection in household contacts is significant in children who were in close contact with a COVID-19-positive patient. Therefore, it is crucial to continue to monitor this group closely.
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