Introduction The aim of our study was to obtain data about the contagion rate among Otolaryngologists in Spanish ENT Departments and about the clinical outcomes in positive otolaryngologists. As a secondary objective, we aim to assess the rate of contagion in the first and the second Covid-19 wave in Spain among Otorhinolaryngologists and the regional distribution by ENT-Departments. Methods Study design and population: This is a prospective observational study in a cohort of 975 Otolaryngologists from 87 ENT Departments conducted from March 25 to November 17 in our collaborative group, COVID ORL ESP. COVID-19 polymerase chain reaction (PCR) was the diagnostic standard. Hospitalization and/or intensive care admission and mortality was recorded as non-identified data. Results Data collected from 975 otolaryngologist from 87 Departments resulted in 157 (16.5%) otolaryngologists testing positive for SARS-CoV-19 by RT-PCR. Important geographic differences in contagion are reported. A total of 136 (86.6%) otolaryngologists were tested positive during the first wave and 21 (13.3%) during the second wave. At the last cut-off point of the study only 30/87 ENT Departments (34.5%) remained COVID19-free and 5 Departments reported more than 50% staff members testing positive. The majority of positive tested otolaryngologists (126/157; 80.2%) had only mild or no symptoms, 17 developed moderate symptoms (10.8%) and 3 had pneumonia not requiring hospitalization (2%). Five colleagues were admitted at hospital, 4 required ICU (2.5%) and 2 colleges died from COVID-19. Conclusions During the first wave of the SARS-CoV-19 pandemic otolaryngologists in Spain have been overall the group suffering the highest rate of contagion, particularly during the first month. Subsequently, the Spanish Ministry of Health should include otorhinolaryngologists as a high-risk group in airborne pandemics.

Background Preliminary evidence suggests that children are just as likely to become infected with SARS-CoV-2 as adults but are less prone to developing severe clinical conditions. However, there are pediatric inflammatory conditions that have also been encountered. The aim of this report is to determine whether there is a relationship between COVID-19 and severe infections in the ear, nose, throat, and deep cervical area (ENT) in pediatric populations. Materials and methods A compilation was made of all the cases of ENT area infections in the pediatric population per month attended to at the Niño Jesús University Children's Hospital from January 2010 to June 2020. Endemic channels and dispersion analysis were designed to analyze the incidence presented in the year 2020, compared to what was expected based on historical data from 2010 to 2019. Then, an epidemiological interview was conducted of the close contacts of COVID-19 of the children who presented a severe ENT infection in 2020. Finally, a serological test of IgG antibodies was performed on all of them to find out if they had overcome the COVID- 19. Results 620 patients from 1022 were eligible for the study. We observed a significant outbreak in the incidence of complicated mastoiditis and deep cervical infections with complications in the year 2020 (13 patients) linked to the COVID-19 pandemic. From these patients, 54% had been confirmed or had high suspicion of close contact with COVID-19.15.4% of children were positive in serological tests for IgG antibodies. Conclusion There has been a significant increase in mastoiditis and deep cervical infections with complications in the first four months of 2020, which constitutes an outbreak. A considerable number (54%) of these complicated infections were related to close contact with COVID-19. Still, only 15.4% were positive in serological tests for IgG antibodies, so we cannot establish a direct categorical relationship. The limitations in primary care due to a shortage of human resources in dealing with the pandemic's initial onslaught and changes in help-seeking behavior could explain increased complicated infections.

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