South Eastern Sydney Local Health District, South Eastern Sydney Public Health Unit, New South Wales.
School of Public Health, Faculty of Medicine and Health, The University of Sydney, New South Wales.
Aust N Z J Public Health. 2021 Oct;45(5):512-516. doi: 10.1111/1753-6405.13135. Epub 2021 Jun 28.
To explore the factors associated with the transmission of SARS-CoV-2 to patrons of a restaurant.
A retrospective cohort design was undertaken, with spatial examination and genomic sequencing of cases. The cohort included all patrons who attended the restaurant on Saturday 25 July 2020. A case was identified as a person who tested positive to a validated specific Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) nucleic acid test. Associations were tested using chi-squared analysis of case versus non-case behaviours.
Twenty cases were epidemiologically linked to exposure at the restaurant on 25 July 2020. All cases dined indoors. All cases able to be genomic sequenced were found to have the same unique mutational profile. Factors tested for an association to the outcome included attentiveness by staff, drink consumption, bathroom use and payment by credit card. No significant results were found.
Indoor dining was identified as a key factor in SARS-CoV-2 transmission, and outdoor dining as a way to limit transmission. Implications for public health: This investigation provides empirical evidence to support public health policies regarding indoor dining.
探讨与餐厅顾客 SARS-CoV-2 传播相关的因素。
采用回顾性队列设计，对病例进行空间检测和基因组测序。该队列包括所有于 2020 年 7 月 25 日星期六光顾餐厅的顾客。病例定义为经验证的特定严重急性呼吸综合征冠状病毒 2（SARS-CoV-2）核酸检测阳性的人。使用病例与非病例行为的卡方分析检验相关性。
20 例病例与 2020 年 7 月 25 日在餐厅的暴露有关。所有病例均在室内用餐。所有能够进行基因组测序的病例均发现具有相同的独特突变特征。测试的与结果相关的因素包括员工的注意力、饮料消费、浴室使用和信用卡支付。未发现显著结果。
室内用餐被确定为 SARS-CoV-2 传播的关键因素，而户外用餐则是限制传播的一种方式。对公共卫生的影响：本研究提供了支持有关室内用餐的公共卫生政策的经验证据。
