About: The impact of relaxing interventions on human contact patterns and SARS-CoV-2 transmission in China

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About: The impact of relaxing interventions on human contact patterns and SARS-CoV-2 transmission in China Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	The impact of relaxing interventions on human contact patterns and SARS-CoV-2 transmission in China
Creator	Yu, Hongjie Viboud, Cecile Vespignani, Alessandro Ajelli, Marco Zhang, Juanjuan Liang, Yuxia Litvinova, Maria Zheng, Wen Shi, Huilin
Source	MedRxiv; Medline
abstract	Non-pharmaceutical interventions to control COVID-19 spread have been implemented in several countries with different intensity, timing, and impact on transmission. As a result, post-lockdown COVID-19 dynamics are heterogenous and difficult to interpret. Here we describe a set of contact surveys performed in four Chinese cities (Wuhan, Shanghai, Shenzhen, and Changsha) during the pre-pandemic, lockdown, and post-lockdown period to quantify the transmission impact of relaxing interventions via changes in age-specific contact patterns. We estimate that the mean number of contacts increased 5%-17% since the end of the lockdown but are still 3-7 times lower than their pre-pandemic levels. We find that post-lockdown contact patterns in China are still sufficiently low to keep SARS-CoV-2 transmission under control. We also find that the impact of school interventions depends non-linearly on the share of other activities being resumed. When most community activities are halted, school closure leads to a 77% decrease in the reproductive number; in contrast, when social mixing outside of schools is at pre-pandemic level, school closure leads to a 5% reduction in transmission. Moving forward, to control COVID-19 spread without resorting to a lockdown, it will be key to dose relaxation in social mixing in the community and strengthen targeted interventions.
has issue date	2020-08-04(xsd:dateTime)
bibo:doi	10.1101/2020.08.03.20167056
bibo:pmid	32793917
has license	medrxiv
sha1sum (hex)	062a2b27b59d071906aa1634c1e985567032e504
schema:url	https://doi.org/10.1101/2020.08.03.20167056
resource representing a document's title	The impact of relaxing interventions on human contact patterns and SARS-CoV-2 transmission in China
has PubMed identifier	32793917
schema:publication	medRxiv : the preprint server for health sciences
resource representing a document's body	covid:062a2b27b59d071906aa1634c1e985567032e504#body_text
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