• Kamil Yılmaz, Velat Şen, Fesih Aktar, Cihan Onder, Engin Deniz Yılmaz, and Zulfikar Yılmaz.
• Department of Pediatrics, Dicle University School of Medicine, Diyarbakir, Turkey.
• Int. J. Clin. Pract. 2021 Sep 1; 75 (9): e14466.

BackgroundIn December 2019, a novel type of coronavirus infection emerged in the Wuhan province of China and began to spread rapidly. In this study, we aimed to determine the differences between COVID-19 disease and Influenza.MethodsThis retrospective study included 164 children with COVID-19, as well as 46 children with Influenza. The two groups were compared with respect to clinical and laboratory parameters and the rates of intensive care and mechanical ventilation requirement.ResultsIn both groups, the most common admission complaints were fever and cough. As compared to the COVID-19 group, the Influenza group had significantly higher rates of cough (37 [80.4%] and 38 [23.2%]), fever (31 [67.4%] and 34 [20.7%]), muscle pain (34 [73.9%] and 31 [18.9%]), vomiting (13 [28.9%] and 8 [4.9%]) and tachypnea (32 [69.6%] and 3 [1.8%]) (P < .01 for all comparisons). The mean WBC count (7.10 ± 1.08 vs. 10.90 ± 1.82), mean neutrophil count (3.19 ± 0.58 vs. 6.04 ± 0.97), APTT, CRP, procalcitonin, ALT, and LDH levels were significantly lower in the COVID-19 group compared to the Influenza group (P < .05 for all comparisons). There was, however, no significant difference between the mean lymphocyte counts of both groups. The Influenza group had significantly higher rates of intensive care requirement (19 [41.3%] vs. 3 [1.8%]) and mechanical ventilation requirement (16 [34.8%] vs. 2 [1.2%]) as well as a significantly higher mortality rate (7 [15.2%] vs. 2 [1.2%]) than the COVID-19 group (P < .01).ConclusionCOVID-19 and Influenza may share similar clinical features. According to our findings, however, we believe that COVID-19 disease has a milder clinical and laboratory course than Influenza in children.© 2021 John Wiley & Sons Ltd.

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