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Impact of national lockdown in reducing SARS-CoV-2 transmission in Portuguese municipalities

2021-11Conference object Restricted access
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dc.contributor.authorGarcia, Teresa
dc.contributor.authorKislaya, Irina
dc.contributor.authorMatias-Dias, Carlos
dc.date.accessioned2022-07-08T15:49:41Z
dc.date.available2023-12-01T01:30:25Z
dc.date.issued2021-11
dc.description.abstractBackground: Rapid spread of the SARS-CoV-2 infections was responsible for the rupture of health services and forced drastic lockdown measures in many countries, driving millions into a socioeconomic crisis. Understanding the impact of non- pharmacological interventions on epidemic control in different socioeconomic contexts is important to inform decision-makers. We aimed to compare the effect of nationwide lockdown on SARS-Cov-2 incidence in different municipalities, grouped by socioeconomic features. Methods : Based on national surveillance data on a laboratory confirmed SARSCoV- 2 cases we developed an ecological interrupted time series analysis study in 277 Portuguese municipalities grouped by socioeconomic features using two- steps cluster analysis. Change in SARS-COV-2 daily incidence after lockdown introduction on March 18, 2020 was estimated in each cluster by negative binomial regression. Two municipality clusters were considered, with cluster A characterized by younger population with lower education and purchasing power and smaller population density. Results: Before lockdown, incidence rates increased by 24,7% and 19,0% daily, reaching 11,42 and 14,11 per 100.000 inhabitants in cluster A and B, respectively. With lockdown introduction, rates decreased by 4,0% and 4,2% daily, reaching 2,96 and 3,50 per 100.000, in cluster A and B 42 days after restrictions implementation. Overall, lockdown measures avoided 138.676,76 and 60.404,15 cases per 100.000, in cluster A and B, respectively. Conclusions: Before lockdown, higher SARS-CoV-2 transmission was observed in the municipalities with lower socioeconomic status, which was expected, considering these socioeconomic features are associated with higher transmission of the virus. Lockdown prevented more cases in these municipalities. Despite the socioeconomic impact, lockdown has demonstrated to be a crucial measure to control SARS-CoV-2 transmission, particularly in municipalities with lower socioeconomic status.pt_PT
dc.description.versionN/Apt_PT
dc.identifier.urihttp://hdl.handle.net/10400.18/8105
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectCOVID-19pt_PT
dc.subjectSARS-CoV-2pt_PT
dc.subjectPublic Health Interventionspt_PT
dc.subjectImpact Portuguese Lockdownpt_PT
dc.subjectDeterminantes da Saúde e da Doençapt_PT
dc.subjectInfecções Respiratóriaspt_PT
dc.subjectPortugalpt_PT
dc.titleImpact of national lockdown in reducing SARS-CoV-2 transmission in Portuguese municipalitiespt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceEstocolmo, Suécia (Online)pt_PT
oaire.citation.titleEuropean Scientific Conference on Applied Infectious Disease Epidemiology" (ESCAIDE), 14-19 de november 2021pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT

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