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Subject: Fwd: FW: [DCHAS-L] Associate Director, Emergency Operations - Office of Public Health Preparedness at Boston Public Health Commission (ID: 22381698)
Date: Monday, May 11, 2020 at 1:46:05 PM
Author: James Kaufman <jim**At_Symbol_Here**LABSAFETY.ORG> 		Next by Date:
Subject: Re: [DCHAS-L] Air direction and virus spread
Date: Mon, 11 May 2020 12:42:42 -0700
Author: Laurence Doemeny

From: Margaret Rakas <mrakas**At_Symbol_Here**SMITH.EDU>
Subject: Re: [DCHAS-L] Air direction and virus spread
Date: Mon, 11 May 2020 14:13:41 -0400
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: CAAszpkxd_p42zHm6cujgm3s7BmBeWP3VY3Qwyf=K7g6mYmd3cA**At_Symbol_Here**mail.gmail.com
In-Reply-To <3311AF1D-D7D9-401A-BAE9-B1E1710F7322**At_Symbol_Here**dchas.org>


And here's another letter from the CDC dealing with a call center in South Korea.

Cluster of COVID-19 in a South Korean Call CEnter

We also know that a high-rise in Hong Kong was the site of an infection through a vent pipe for the wastewater...
Hong Kong High Rise Apt-Plumbing Vent Pipe COVID -19

This is a respiratory disease so transmission through the air is likely the primary source to deal with/think about....

MR

On Mon, May 11, 2020 at 1:51 PM DCHAS Membership Chair <membership**At_Symbol_Here**dchas.org> wrote:
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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Margaret A. Rakas, Ph.D.
Lab Safety & Compliance Director
Clark Science Center
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