key: cord-277911-x916hsg6 authors: Wu, Di; Lu, Jianyun; Ma, Xiaowei; Liu, Qun; Wang, Dedong; Gu, Yuzhou; Li, Yongguang; He, Weiyun title: Coinfection of Influenza Virus and Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-COV-2) date: 2020-04-13 journal: Pediatr Infect Dis J DOI: 10.1097/inf.0000000000002688 sha: doc_id: 277911 cord_uid: x916hsg6 nan Letters to the editor To the Editors: is a new infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which originated from Wuhan in China and has now spread globally. However, despite the concern focused on SARS-CoV-2, influenza virus continues to circulate and cause disease. Here we report a mixed infection. Physicians should be alert that a positive test for influenza does not rule out the possibility of COVID-19 disease. The SARS-COV-2 outbreak in late December of 2019 in Wuhan, China, has caused many infections and deaths globally. SRAS-COV-2 is a new respiratory tract transmitted disease mainly through respiratory droplet and close contact, aerosol but fecal-oral route is also suspected. As of March 19, 2020, a total of 23,473 cases, and 9840 deaths were reported. 1 In China, several respiratory viruses are also now active including influenza, parainfluenza virus, respiratory syncytial virus, adenovirus, and now SARS-COV-2. Unfortunately, according to the World Health Organization influenza website, 2 the respiratory illness indicators and influenza activity remained elevated overall in the northern hemisphere which are in a "flu" season. The weekly report of the influenza surveillance reported that the United States now has its highest pneumonia and influenza mortality since 2004, except for the 2009 pandemic. 3 During the SARS pandemic in 2003, Yang et al 4 found that the patients with fever, cough or sore throat had a 5% of influenza virus positive rate, and with SARS infection reportedly increasing at the meantime. This raises the concerns that there might be mixed infections of seasonal influenza and the novel coronavirus. Thus, we do think there might be a The major issues we are encountering could be summarized as follows: • To define a univocal definition of pediatric suspected case. • To avoid a waste of resources. • To define pediatric isolation areas able to include 1 parent. • To plan a correct patients' flow, from hospital admission to isolation in proper ward or pediatric intensive care units, limiting the healthcare professionals and other patients' exposure. • To adapt family-centered care approach allowing a good balance between the presence of one of the child parents during hospital stay and the best intrahospital infection control. • To develop a procedure to guide decision in removing "low-risk patients" from isolation room in case of imbalance between sources and needs. The current World Health Organization (WHO)/ECDC definition of suspected case is not focused on pediatric population. According to WHO/ECDC criteria, suspected cases should be isolated in negative pressure rooms. Deisolation could be considered only after 2 negative respiratory samples. However, the time to laboratory test response lasts more than 48 hours thus leading to a difficult management of patients' flow. The logistic is complicated by the fact that according to national law, 1 parent should stay with the child. Considering the large number of patients referring to pediatric hospital because of acute respiratory infections in winter season, the strict adoption of WHO/ECDC criteria can lead to a congestion of our hospitals. CoVID-19 can World Health Organization. Coronavirus disease 2019 (COVID-19) Situation Report -60 World Health Organization. Influenza update -362, based on data up to Key Updates for Week 8, ending Influenza virologic and epidemiologic surveillance in Guangzhou, 2003. South China Co-infection with SARS-CoV-2 and influenza A virus in patient with pneumonia The authors have no funding or conflicts of interest to disclose.