•Clinical and laboratory features indicate the 3 outpatients showed mild symptoms, and the inpatient experienced malignant tumor and had worse outcomes from COVID-19.
•In January, when the testing capacity is insufficient, co-infection of SARS-CoV-2 with influenza viruses in winter influenza activity peak season may contribute the expansion of SARS-CoV-2 in the local population.
Xin Zheng1, 3, #, Hua Wang1, 3, #, Zhengyuan Su2, #, Wei Li1, 3, Dongliang Yang1, 3, Fei Deng2, *, Jianjun Chen2, * Affiliations:
(df@wh.iov.cn).
In this Journal, Tang 3). The epidemic of SARS-CoV-2 has rapidly spread worldwide and affected more than 4 million patients with more than 300 000 deaths in more than 230 countries (4) . Both SARS-CoV-2 and influenza virus can cause highly similar respiratory symptoms, including high fever, cough, headache and even pneumonia (2, 5, 6) . In Table 2 Table 2 ).
Our results revealed co-infection of SARS-CoV-2 and influenza viruses but with low rate in Wuhan, China. However, the risk of co-infection of SARS-CoV-2 with influenza viruses in winter influenza activity peak season is concerning. In January, when the testing capacity is insufficient, co-infection of SARS-CoV-2 with influenza viruses in winter influenza activity peak season may contribute the