André de Souza Melo, Ana Iza Gomes da Penha Sobral, Marcelo Luiz Monteiro Marinho, Gisleia Benini Duarte, Amanda Aires Vieira, Marcos Felipe Falcão Sobral
{"title":"社会距离对 COVID-19 感染和死亡的影响。","authors":"André de Souza Melo, Ana Iza Gomes da Penha Sobral, Marcelo Luiz Monteiro Marinho, Gisleia Benini Duarte, Amanda Aires Vieira, Marcos Felipe Falcão Sobral","doi":"10.1186/s40794-021-00137-3","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>To assess the impact of the social isolation index on the number of infections and deaths by COVID-19 in the state of São Paulo (Brazil).</p><p><strong>Methods: </strong>Daily isolation data, obtained through geolocation information by mobile phone, were evaluated together with the number of daily infections and deaths by COVID-19 in the state of São Paulo. The study was conducted from February 26 to May 19, 2020. The data were modeled through the vector autoregression (VAR) model.</p><p><strong>Results: </strong>The isolation index has an effect of approximately 5% in variation in the number of infections, and 7% in the number of deaths. The impulse response function (IRF) caused a drop of 0.15% in the number of new cases/day, and 0.17% in the number of deaths/day following a shock in the isolation index. For both cases, this effect occurred 1 day after the shock and stabilized after 10 periods. An increase of 1% in the isolation index led to a reduction of 6.91% in new cases and 6.90% in the number of deaths. The 30 cumulative day reduction reached 22.72% in terms of transmission and 35.39% for deaths.</p><p><strong>Conclusions: </strong>The social isolation index is related to deaths and infections from SARS-CoV-2. Although distancing measures are accompanied with impacts on the economy and the emergence of other morbidities, the benefits caused by the reduction in the speed of contagion are significant. The adoption of distancing measures has a substantial impact on the number of infected individuals and deaths by COVID-19.</p>","PeriodicalId":23303,"journal":{"name":"Tropical Diseases, Travel Medicine and Vaccines","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2021-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8093001/pdf/","citationCount":"0","resultStr":"{\"title\":\"The impact of social distancing on COVID-19 infections and deaths.\",\"authors\":\"André de Souza Melo, Ana Iza Gomes da Penha Sobral, Marcelo Luiz Monteiro Marinho, Gisleia Benini Duarte, Amanda Aires Vieira, Marcos Felipe Falcão Sobral\",\"doi\":\"10.1186/s40794-021-00137-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>To assess the impact of the social isolation index on the number of infections and deaths by COVID-19 in the state of São Paulo (Brazil).</p><p><strong>Methods: </strong>Daily isolation data, obtained through geolocation information by mobile phone, were evaluated together with the number of daily infections and deaths by COVID-19 in the state of São Paulo. The study was conducted from February 26 to May 19, 2020. The data were modeled through the vector autoregression (VAR) model.</p><p><strong>Results: </strong>The isolation index has an effect of approximately 5% in variation in the number of infections, and 7% in the number of deaths. The impulse response function (IRF) caused a drop of 0.15% in the number of new cases/day, and 0.17% in the number of deaths/day following a shock in the isolation index. For both cases, this effect occurred 1 day after the shock and stabilized after 10 periods. An increase of 1% in the isolation index led to a reduction of 6.91% in new cases and 6.90% in the number of deaths. The 30 cumulative day reduction reached 22.72% in terms of transmission and 35.39% for deaths.</p><p><strong>Conclusions: </strong>The social isolation index is related to deaths and infections from SARS-CoV-2. Although distancing measures are accompanied with impacts on the economy and the emergence of other morbidities, the benefits caused by the reduction in the speed of contagion are significant. The adoption of distancing measures has a substantial impact on the number of infected individuals and deaths by COVID-19.</p>\",\"PeriodicalId\":23303,\"journal\":{\"name\":\"Tropical Diseases, Travel Medicine and Vaccines\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2021-05-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8093001/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Tropical Diseases, Travel Medicine and Vaccines\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1186/s40794-021-00137-3\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"INFECTIOUS DISEASES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tropical Diseases, Travel Medicine and Vaccines","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1186/s40794-021-00137-3","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INFECTIOUS DISEASES","Score":null,"Total":0}
The impact of social distancing on COVID-19 infections and deaths.
Background: To assess the impact of the social isolation index on the number of infections and deaths by COVID-19 in the state of São Paulo (Brazil).
Methods: Daily isolation data, obtained through geolocation information by mobile phone, were evaluated together with the number of daily infections and deaths by COVID-19 in the state of São Paulo. The study was conducted from February 26 to May 19, 2020. The data were modeled through the vector autoregression (VAR) model.
Results: The isolation index has an effect of approximately 5% in variation in the number of infections, and 7% in the number of deaths. The impulse response function (IRF) caused a drop of 0.15% in the number of new cases/day, and 0.17% in the number of deaths/day following a shock in the isolation index. For both cases, this effect occurred 1 day after the shock and stabilized after 10 periods. An increase of 1% in the isolation index led to a reduction of 6.91% in new cases and 6.90% in the number of deaths. The 30 cumulative day reduction reached 22.72% in terms of transmission and 35.39% for deaths.
Conclusions: The social isolation index is related to deaths and infections from SARS-CoV-2. Although distancing measures are accompanied with impacts on the economy and the emergence of other morbidities, the benefits caused by the reduction in the speed of contagion are significant. The adoption of distancing measures has a substantial impact on the number of infected individuals and deaths by COVID-19.
期刊介绍:
Tropical Diseases, Travel Medicine and Vaccines is an open access journal that considers basic, translational and applied research, as well as reviews and commentary, related to the prevention and management of healthcare and diseases in international travelers. Given the changes in demographic trends of travelers globally, as well as the epidemiological transitions which many countries are experiencing, the journal considers non-infectious problems including chronic disease among target populations of interest as well as infectious diseases.