Background We performed a search in the PubMed databases, Web of Science, LILACS, MEDLINE, SciELO, and Cochrane Library using the keywords COVID-19, Novel coronavirus, corona, 2019-nCoV, SARS-CoV-2, ENT, nose, anosmia, hyposmia, smell, olfactory, ORL, different ENT related symptoms. We reviewed published and peer-reviewed studies that reported the ENT manifestations in COVID-19 laboratory-confirmed positive patients. Main text Within the included 2549 COVID-19 laboratory-confirmed positive patients, smell affection was reported in 1453 patients (57%). The other reported ENT manifestations were taste disorder (49.2%), headache (42.8%), nasal blockage (26.3%), sore throat (25.7%), runny nose or rhinorrhea (21.3%), upper respiratory tract infection (URTI) (7.9%), and frequent sneezing (3.6%). Conclusion Smell affection in COVID-19 is common and could be one of the red flag signs in COVID-19 infection. With a sensitivity of utilized questionnaire in smell identification, a homogenous universal well-defined COVID-19 questionnaire is needed to make the COVID-19 data collection more sensible.
【저자키워드】 COVID-19, coronavirus, Anosmia, Smell, Otorhinolaryngology, Hyposmia, olfactory, ENT, 【초록키워드】 SARS-CoV-2, 2019-nCoV, Infection, nasal, headache, Symptoms, sensitivity, COVID-19 infection, Patient, novel, upper respiratory tract, questionnaire, manifestation, sore throat, Web of Science, LILACS, positive patients, Cochrane Library, URTI, disorder, rhinorrhea, laboratory-confirmed, SciELO, performed, reported, homogenous, peer-reviewed study, 【제목키워드】 Infection, disorder, with COVID-19,