Timely and Aggressive Antiviral Prophylaxis During Influenza Outbreaks in Long-Term Care Facilities
Overview
This study examines the impact of antiviral chemoprophylaxis strategies on mortality and hospitalization risks during influenza outbreaks in nursing homes. It emphasizes the importance of rapid and widespread administration of oseltamivir to eligible residents.
Background
Influenza outbreaks in nursing homes pose significant risks to older adults, leading to increased morbidity and mortality. The CDC and IDSA recommend prompt antiviral prophylaxis to mitigate the spread of influenza in these settings. Despite strong recommendations, the optimal coverage and timing for effective chemoprophylaxis remain unclear.
Data Highlights
This observational study utilized electronic health record data from 12 US nursing home corporations from September 1, 2018, to May 31, 2022, to analyze the effects of antiviral chemoprophylaxis strategies.
Key Findings
Antiviral chemoprophylaxis with oseltamivir was recommended for all non-ill residents during outbreaks.
High-quality evidence on optimal coverage thresholds and timing for chemoprophylaxis is lacking.
Intensive chemoprophylaxis (≥70% of eligible residents within 2 days) was associated with lower 14-day hospitalization risks.
Prior studies showed varying coverage rates (20%-100%) and initiation delays (2-10 days) in previous outbreaks.
The study followed STROBE guidelines for observational research reporting.
Clinical Implications
Healthcare professionals should prioritize rapid initiation of antiviral chemoprophylaxis in nursing homes during influenza outbreaks. Understanding the importance of achieving high coverage rates may assist in reducing hospitalization risks among residents.
Conclusion
The study highlights the need for timely and aggressive antiviral strategies to control influenza outbreaks in nursing homes, emphasizing the potential benefits of high coverage and rapid administration.
Large Swedish cohort study finds children hospitalized for respiratory syncytial virus at older ages have greater risk of subsequent bacterial pneumonia
