CoMix: comparing mixing patterns in the Belgian population during and after lockdown.
CoMix: comparing mixing patterns in the Belgian population during and after lockdown.
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DOI：
10.1038/s41598-020-78540-7
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发表时间：
2020-12-14
影响因子：
4.6
通讯作者：
Hens N
中科院分区：
文献类型：
--
作者：
Coletti P;Wambua J;Gimma A;Willem L;Vercruysse S;Vanhoutte B;Jarvis CI;Van Zandvoort K;Edmunds J;Beutels P;Hens N
COVID-19大流行显示了一种新出现的传染病如何给公共卫生带来巨大负担。为了避免系统崩溃，政府采取了几项社会距离措施。在比利时，这包括封锁和随后的分阶段重新开放。在比利时干预措施的不同阶段，从4月中旬到8月初，对比利时成年人的代表性样本进行了接触行为调查。还报告了使用个人防护设备（口罩）和遵守卫生措施的情况。我们估计了预期的繁殖数量，计算了与大流行前数据的比率。在调查的前两波（第一个月）中，平均接触次数减少了约80%，并且在所有年龄段都非常一致。平均接触人数随着时间的推移而增加，特别是在较年轻的年龄组中，但仍显著低于大流行前的数值。从5月底到7月底，估计的繁殖数的中值大于1，但具有广泛的分散。估计在8月初再次跌破1。我们展示了快速部署的调查如何衡量社交距离的合规性，并评估其对COVID-19传播的影响。监控社交距离建议的有效性对避免COVID-19的进一步浪潮至关重要。
The COVID-19 pandemic has shown how a newly emergent communicable disease can lay considerable burden on public health. To avoid system collapse, governments have resorted to several social distancing measures. In Belgium, this included a lockdown and a following period of phased re-opening. A representative sample of Belgian adults was asked about their contact behaviour from mid-April to the beginning of August, during different stages of the intervention measures in Belgium. Use of personal protection equipment (face masks) and compliance to hygienic measures was also reported. We estimated the expected reproduction number computing the ratio of with respect to pre-pandemic data. During the first two waves (the first month) of the survey, the reduction in the average number of contacts was around 80% and was quite consistent across all age-classes. The average number of contacts increased over time, particularly for the younger age classes, still remaining significantly lower than pre-pandemic values. From the end of May to the end of July , the estimated reproduction number has a median value larger than one, although with a wide dispersion. Estimated fell below one again at the beginning of August. We have shown how a rapidly deployed survey can measure compliance to social distancing and assess its impact on COVID-19 spread. Monitoring the effectiveness of social distancing recommendations is of paramount importance to avoid further waves of COVID-19.
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作者：
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通讯作者：
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作者：
Willem L;Van Kerckhove K;Chao DL;Hens N;Beutels P
通讯作者：
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影响因子：
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作者：
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通讯作者：
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