Clinical characteristics and population-based attack rates of respiratory syncytial virus versus influenza hospitalizations among adults-An observational study.

20 , 21 As in other studies, cancer and immunosuppression tended to be more common among RSV than influenza patients; however, these differences did not reach statistical significance, and the lack of patients with acute hematologic malignancies or recent transplant may have affected our results. 20 , 21 , 33 Another recent study reported that hematologic malignancies and solid cancer are risk factors of RSV pneumonia. 38 The clinical pictures of RSV and influenza were similar except that fever was less common among RSV patients as in previous studies. 5 , 9 , 31 , 34 Sudden onset of symptoms was less common, and hospitalization occurred on average 1 day later in RSV than influenza SARI.

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