Related Experiment Video
Updated: Aug 13, 2026
A Video Surveillance System to Monitor Breeding Colonies of Common Terns (Sterna Hirundo)
Published on: July 22, 2018
[Surveillance and control of ARI among urban nurseries in Beijing]
1Capital Institute of Pediatrics.
Insights
Acute respiratory infections (ARI) are common in young children, with higher rates in the 0-2 age group. Influenza and adenovirus were identified as common pathogens, and oral BCG showed potential for prevention.
Area of Science:
- Pediatrics
- Infectious Diseases
- Epidemiology
Background:
- Acute respiratory infections (ARI) pose a significant health burden in young children.
- Understanding the epidemiology and common pathogens of ARI is crucial for effective prevention and treatment strategies.
Purpose of the Study:
- To investigate the incidence, characteristics, and common viral pathogens of ARI in Beijing kindergartens.
- To evaluate the potential preventive effect of orally administered killed BCG on ARI.
Main Methods:
- A longitudinal study was conducted in four Beijing kindergartens from September 1984 to August 1987.
- Data on ARI incidence, age-specific rates, and seasonal patterns were collected.
- Viral serology and isolation were performed on a subset of cases to identify causative agents.
Main Results:
- The overall ARI incidence rate in children aged 0-7 years was 348.3%, with upper respiratory infections being most common.
- Children aged 0-2 years had significantly higher incidence rates of both upper (1.5 times) and lower respiratory infections (6.3 times) compared to older children.
- Influenza virus and adenovirus were identified as prevalent pathogens, with peak ARI season occurring from October to January.
Conclusions:
- ARI is a substantial public health issue in preschool-aged children in Beijing.
- Younger children (0-2 years) are at a considerably higher risk for ARI, particularly lower respiratory infections.
- Influenza and adenovirus are key viral contributors to ARI, and oral BCG warrants further investigation for its preventive potential.
Abstract:
A study on acute respiratory infectious was carried out in four kindergartens in Beijing from September, 1984 to August, 1987. The results showed that ARI incidence rate in the children aged 0-7 years was 348.3%. Most of the cases were upper respiratory infectious. The incidence rate of pneumonia was 2.7%. The relationship between ARI incidence rate and age group showed that incidence of URI of 0-2 age group was 1.5 times higher than that of 5-7 age group, while the incidence of LRI of that 0-2 age group was 6.3 times higher than the later age group. The peak season of ARI was from October to January each year. The virus infections showed its priority in ARI. Duplicate samples of sera of 240 cases were tested. In which 122 cases were proved positive. Some strains of virus were isolated as well. It was showed that the influenza virus and adenovirus were the common pathogens of ARI. The effect of killed BCG(orally) on preventing ARI was observed. The preliminary date indicated the potential effect for the prevention of ARI by this measure.
