Respiratory crisis. By Patricia Donoso, Academic of Faculty of Nursing U. Andrés Bello, Sede Viña del Mar

The circulation of respiratory viruses in the country shows a sustained increase, with a positivity of 44.6% during epidemiological week 16 of the 2025 calendar. Among the main agents identified are Rinovirus and Influenza A, mainly affecting children under 4 years of age and the elderly. Particularly, Influenza A maintains an upward trend, with the predominance of variant A(H1N1), which requires special attention due to its greater capacity to …