From: DCHAS Membership Chair <membership**At_Symbol_Here**DCHAS.ORG>
Subject: [DCHAS-L] Air direction and virus spread
Date: Mon, 11 May 2020 13:43:18 -0400
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: 3311AF1D-D7D9-401A-BAE9-B1E1710F7322**At_Symbol_Here**dchas.org


FYI, here's an interesting letter from China published by the CDC related to this morning's discussion of best practices for Covid control in labs.

https://wwwnc.cdc.gov/eid/article/26/7/20-0764_article

COVID-19 Outbreak Associated with Air Conditioning in Restaurant, Guangzhou, China, 2020

Abstract
During January 26??February 10, 2020, an outbreak of 2019 novel coronavirus disease in an air-conditioned restaurant in Guangzhou, China, involved 3 family clusters. The airflow direction was consistent with droplet transmission. To prevent the spread of the virus in restaurants, we recommend increasing the distance between tables and improving ventilation.

Ralph Stuart, CIH, CCHO
membership**At_Symbol_Here**dchas.org

Membership chair
American Chemical Society
Division of Chemical Health and Safety

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