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. 2020 Apr 10;81(2):318–356. doi: 10.1016/j.jinf.2020.03.045

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© 2020 The British Infection Association. Published by Elsevier Ltd. All rights reserved.

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Fig 1 — Top panel (A, B): Covid-19 outbreak in China compared to concentration of particulate matter (PM 2.5) (Wikipedia.org;CC BY-SA 4.0). Panel C: Italian distribution of COVID-19 cases. Top right and bottom right panel (D,E): Levels of NO2 air pollutant(Month of December) in China and North Italy (Source: NASA G.I.O.V.A.N.N.I. - see https://giovanni.gsfc.nasa.gov/giovanni/).Bottom panel F: Nitrogen Dioxide pollution map over EUROPE as seen by Copernicus SENTINEL 5P satellite (Jan to Apr 2019).(Credit: ESA - Copernicus SENTINEL 5P CC BY-SA IGO3.0,https://www.esa.int/ESA_Multimedia/Images/2019/05/Nitrogen_dioxide_over_northern_Italy).