Related Articles Eleven Faces of Coronavirus Disease 2019 Allergy 2020 Mar 20 Authors Dong X Cao YY Lu XX Zhang JJ Du H Yan YQ Akdis CA Gao YD Abstract BACKGROUND AND AIMS The outbreak of coronavirus disease 2019 COVID 19 caused by severe acute respiratory syndrome coronavirus 2 SARS CoV 2 infection has recently spread worldwide and been declared a pandemic We aim to describe here the various clinical presentations of this disease by examining eleven cases METHODS Electronic medical records of 11 patients with COVID 19 were collected and demographics clinical manifestations outcomes key laboratory results and radiological images are discussed RESULTS The clinical course of the eleven cases demonstrated the complexity of the COVID 19 profile with different clinical presentations Clinical manifestations range from asymptomatic cases to patients with mild and severe symptoms with or without pneumonia Laboratory detection of the viral nucleic acid can yield false negative results and serological testing of virus specific IgG and IgM antibodies should be used as an alternative for diagnosis Patients with common allergic diseases did not develop distinct symptoms and severe courses Cases with a pre existing condition of chronic obstructive pulmonary disease or complicated with a secondary bacterial pneumonia were more severe CONCLUSION All different clinical characteristics of COVID 19 should be taken into consideration to identify patients that need to be in strict quarantine for the efficient containment of the pandemic PMID 32196678 PubMed as supplied by publisher