Diagnostic significance of posterior pharyngeal lymphoid follicles in seasonal influenza

In their recently published study, Takeoka et al.1 investigated helpful findings for diagnosing seasonal influenza. They conducted a single-center case-control study including 176 cases and 38 controls and demonstrated that the odds ratio of posterior pharyngeal lymphoid follicles in patients with seasonal influenza was 2.71 (95% confidence interval [CI], 1.17–6.28) and that the specificity was 0.711 (95% CI, 0.541–0.846). They then concluded...