Acute respiratory infections in children from a deprived urban population from Uruguay

Area of Science:

• Pediatrics
• Infectious Diseases
• Epidemiology

Background:

• Acute Respiratory Infections (ARI) pose a significant health burden on children globally.
• Data on ARI incidence, duration, and etiology in deprived populations, particularly in Uruguay, are limited.
• Understanding these factors is crucial for developing effective public health interventions.

Purpose of the Study:

• To establish baseline data on the incidence, duration, clinical characteristics, and etiology of ARI in young children from deprived families in Montevideo.
• To compare ARI patterns between infants (<12 months) and older children (>12 months).
• To assess the impact of ARI on childhood health in this specific community.

Main Methods:

• A prospective, community-based cohort study followed 276 children for 32 months.
• Children were divided into two age groups: <12 months and >12 months.
• Data collected included ARI episodes, clinical signs, and etiological agents.

Main Results:

• A total of 1,056 ARI episodes were recorded, with an incidence of 5.2 episodes per child/year.
• Infants (<12 months) experienced 87% higher ARI incidence and longer episode durations compared to older children.
• Viral etiology was identified in 15.3% of episodes, with RSV being the predominant agent. Streptococcus pneumoniae and Hemophilus sp. were frequently found colonizing the upper respiratory tract.

Conclusions:

• Acute respiratory infections represent a substantial health challenge for young children in deprived settings in Montevideo, with infants being particularly vulnerable.
• The study highlights the need for targeted interventions to reduce ARI burden and associated mortality in this population.
• Original epidemiological data on ARI in Uruguay were provided, informing future research and public health strategies.