Indoor transmission of SARS-CoV-2

Hua Qian; Te Miao; Li LIU; Xiaohong Zheng; Danting Luo; Yuguo Li

The association between crowding and infection has been known since Pringle. 18 The most dramatic example might be in the cruise ship outbreak on the crowded Diamond Princess, of which the peak basic production number was predicted to be 11 19 or 14·8 20 before quarantine and much higher elsewhere. The world's first statutory housing policy, the Artisans and Labourers Dwellings Act 1875 21 was developed following 19 th century empirical evidence that crowding led to a high incidence of infectious disease. A recent systematic review by the World Health Organization also found an association between crowding and infection. 22 A Lancet editorial in 2018 declared '[t]he right to a healthy home'. 23 One WHO meeting also declared that 'everyone has the right to breathe healthy indoor air' 24 and that 'the provision of healthy indoor air should not compromise global or local ecological integrity, or the rights of future generations'. 25 We hope that in the post-pandemic future, mankind will reflect deeply on the need for a healthy indoor environment. All rights reserved. No reuse allowed without permission. the author/funder, who has granted medRxiv a license to display the preprint in perpetuity.