A compendium answering 150 questions on COVID-19 and SARS-CoV-2

Carmen Riggioni, Pasquale Comberiati, Mattia Giovannini, Ioana Agache, Mübeccel Akdis, Magna Alves-Correia, Josep M. Antó, Alessandra Arcolaci, Ahmet Kursat Azkur, Dilek Azkur, Burcin Beken, Cristina Boccabella, Jean Bousquet, Heimo Breiteneder, Daniela Carvalho, Leticia De las Vecillas, Zuzana Diamant, Ibon Eguiluz-Gracia, Thomas Eiwegger, Stefanie EyerichWytske Fokkens, Ya-dong Gao, Farah Hannachi, Sebastian L. Johnston, Marek Jutel, Aspasia Karavelia, Ludger Klimek, Beatriz Moya, Kari C. Nadeau, Robyn O'Hehir, Liam O'Mahony, Oliver Pfaar, Marek Sanak, Jürgen Schwarze, Milena Sokolowska, María J. Torres, Willem van de Veen, Menno C. van Zelm, De Yun Wang, Luo Zhang, Rodrigo Jiménez-Saiz*, Cezmi A. Akdis*

*Corresponding author for this work

Research output: Contribution to journalReview articleProfessionalpeer-review

87 Citations (Scopus)


In December 2019, China reported the first cases of the coronavirus disease 2019 (COVID-19). This disease, caused by the severe acute respiratory syndrome–related coronavirus 2 (SARS-CoV-2), has developed into a pandemic. To date, it has resulted in ~9 million confirmed cases and caused almost 500 000 related deaths worldwide. Unequivocally, the COVID-19 pandemic is the gravest health and socioeconomic crisis of our time. In this context, numerous questions have emerged in demand of basic scientific information and evidence-based medical advice on SARS-CoV-2 and COVID-19. Although the majority of the patients show a very mild, self-limiting viral respiratory disease, many clinical manifestations in severe patients are unique to COVID-19, such as severe lymphopenia and eosinopenia, extensive pneumonia, a “cytokine storm” leading to acute respiratory distress syndrome, endothelitis, thromboembolic complications, and multiorgan failure. The epidemiologic features of COVID-19 are distinctive and have changed throughout the pandemic. Vaccine and drug development studies and clinical trials are rapidly growing at an unprecedented speed. However, basic and clinical research on COVID-19–related topics should be based on more coordinated high-quality studies. This paper answers pressing questions, formulated by young clinicians and scientists, on SARS-CoV-2, COVID-19, and allergy, focusing on the following topics: virology, immunology, diagnosis, management of patients with allergic disease and asthma, treatment, clinical trials, drug discovery, vaccine development, and epidemiology. A total of 150 questions were answered by experts in the field providing a comprehensive and practical overview of COVID-19 and allergic disease.

Original languageEnglish
Pages (from-to)2503-2541
Number of pages39
JournalAllergy: European Journal of Allergy and Clinical Immunology
Issue number10
Publication statusPublished - Oct 2020
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2020 European Academy of Allergy and Clinical Immunology and John Wiley & Sons Ltd.


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