Antivirals for Treatment of Influenza: A Systematic Review and Meta-analysis of Observational Studies

Via Scoop.itVirology News

Meta-analyses of the few studies providing effects with adjustment for confounders suggest that in high-risk populations, oral oseltamivir may reduce mortality (odds ratio, 0.23 [95% CI, 0.13 to 0.43]; low-quality evidence), hospitalization (odds ratio, 0.75 [CI, 0.66 to 0.89]; low-quality evidence), and duration of symptoms (33 hours [CI, 21 to 45 hours]; very low–quality evidence) compared with no treatment. Earlier treatment with oseltamivir was generally associated with better outcomes. Inhaled zanamivir may lead to shorter symptom duration (23 hours [CI, 17 to 28 hours]; moderate-quality evidence) and fewer hospitalizations (odds ratio, 0.66 [CI, 0.37 to 1.18]) but more complications than no treatment. Direct comparison of oral oseltamivir and inhaled zanamivir suggests no important differences in key outcomes. Data from 1 study suggests that oral amantadine may reduce mortality and pneumonia associated with influenza A. No included study evaluated rimantadine.   Image courtesy of Russell Kightley Media
Via www.annals.org

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