doubletrouble, le 19/04/2021 a écrit :
@GoodbyLenine : La comparaison est déjà réalisable entre les différents états américains. Une douzaine d’états se sont soit abstenus de mettre en place des mesures de confinement, soit ont depuis rouvert complètement. Globalement, ils ne font pas pire et souvent même mieux que les états qui ont adopté les mesures les plus strictes.
Voici quelques articles trouvés avec une simple recherche:
(PDF) The Efficacy of Lockdown Against COVID-19: A Cross-Country Panel Analysis
Salvatore Ercolano a écrit :
Conclusion Results suggest that lockdown is effective in reducing the R0, i.e. the number of people infected by each infected person, and that, unlike what has been suggested in previous analyses, its efficacy continues to hold 20 days after the introduction of the policy.
(PDF) Containment and mitigation strategies during the first wave of Covid-19 pandemic. A territorial approach in CCE countries
Popescu Liliana a écrit :
In CEE countries, the lockdown, when enforced, preceded the curve of infections. There was little variation in the design and implementation of mitigation strategies, which were deployed very quickly, hence a much lower infection rate that did not pose additional strain on the health system.
(PDF) Differences in rapid increases in county-level COVID-19 incidence by implementation of statewide closures and mask mandates — United States, June 1-September 30, 2020
Sharoda Dasgupta a écrit :
Counties in states that closed for 0–59 days were more likely to become a rapid riser county than those that closed for >59 days, particularly in nonmetropolitan areas. The probability of becoming a rapid riser county was 43% lower among counties that had statewide mask mandates at reopening (adjusted prevalence ratio [aPR] = 0.57; 95% confidence intervals [CI] = 0.51–0.63); when stratified by urbanicity, associations were more pronounced in nonmetropolitan areas. Conclusions : These results underscore the potential value of community mitigation strategies in limiting the COVID-19 spread, especially in nonmetropolitan areas.
Association of State Stay-at-Home Orders and State-Level African American Population With COVID-19 Case Rates | Request PDF
Sangeetha Padalabalanarayanan a écrit :
Conclusions and Relevance In this cross-sectional study, SAHOs were associated with reductions in COVID-19 case rates.
Trends in COVID-19 Incidence After Implementation of Mitigation Measures - Arizona, January 22-August 7, 2020
Shayne Gallaway a écrit :
The number of COVID-19 cases in Arizona stabilized and then decreased after sustained implementation and enforcement of statewide and locally enhanced mitigation measures, beginning approximately 2 weeks after implementation and enforcement of mask mandates and enhanced sanitations practices began on June 17; further decreases were observed during July 13–August 7, after statewide limitations and closures of certain services and businesses.
(PDF) Differing impacts of global and regional responses on SARS-CoV-2 transmission cluster dynamics
Brittany Rife Magalis a écrit :
Results demonstrate a positive impact of international travel restrictions and nationwide lockdowns on global cluster dynamics.
(PDF) The effect of lockdown on the COVID-19 epidemic in Brazil: Evidence from an interrupted time series design
Antônio Alves Tôrres Fernandes]After lockdown, a statistically significant decrease in new confirmed cases was found in all state capitals. We also found evidence that lockdown measures were likely to reverse the trend of new daily deaths due to COVID-19. In São Luís, we observed a reduction of 37.85% while in Fortaleza the decrease was 33.4% on the average difference in daily deaths if the lockdown had not been implemented. Similarly, the intervention diminished mortality in Recife by 21.76% and Belém by 16.77%. Social distancing policies can be useful tools in flattening the epidemic curve.[/quote]
[url=https://www.researchgate.net/publication/341892405_The_Efficacy_of_Lockdown_Against_COVID-19_A_Cross-Country_Panel_Analysis](PDF) The Efficacy of Lockdown Against COVID-19: A Cross-Country Panel Analysis[/url]
[quote=Vincenzo Alfano]Our results show that lockdown is effective in reducing the number of new cases in the countries that implement it, compared with those countries that do not. This is especially true around 10 days after the implementation of the policy. Its efficacy continues to grow up to 20 days after implementation.[/quote]
[url=https://science.sciencemag.org/content/371/6531/eabd9338]Inferring the effectiveness of government interventions against COVID-19 | Science[/url]
[quote="Jan M. Brauner a écrit :
Across all experimental conditions, all interventions could robustly be placed in one or two of these categories. Closing both schools and universities was consistently highly effective at reducing transmission at the advent of the pandemic. Banning gatherings was effective, with a large effect size for limiting gatherings to 10 people or less, a moderate-to-large effect for 100 people or less, and a small-to-moderate effect for 1000 people or less. Targeted closures of face-to-face businesses with a high risk of infection, such as restaurants, bars, and nightclubs, had a small-to-moderate effect. Closing most nonessential businesses delivering personal services was only somewhat more effective (moderate effect). When these interventions were already in place, issuing a stay-at-home order had only a small additional effect. These results indicate that, by using effective interventions, some countries could control the epidemic while avoiding stay-at-home orders.
Is Lockdown Effective in Limiting SARS-CoV-2 Epidemic Progression?a Cross-Country Comparative Evaluation Using Epidemiokinetic Tools
Bruno Mégarbane a écrit :
In New Zealand, France, Spain, Germany, the Netherlands, Italy, and the UK, early-onset stay-at-home orders and restrictions followed by gradual deconfinement allowed rapid reduction in SARS-CoV-2-infected individuals (t1/2β ≤ 14 days) with R0 ≤ 1.5 and rapid recovery (t1/2γ ≤ 18 days). By contrast, in Sweden (no lockdown) and the USA (heterogeneous state-dependent lockdown followed by abrupt deconfinement scenarios), a prolonged plateau of SARS-CoV-2-infected individuals (terminal t1/2β of 23 and 40 days, respectively) with elevated R0 (4.9 and 4.4, respectively) and non-ending recovery (terminal t1/2γ of 112 and 179 days, respectively) was observed.
Et d’autres sur l’efficacité du port du masque:
US states with higher mask use have lower COVID-19 rates - Scimex
Charlie B. Fischer a écrit :
Of the 8 states with at least 75% mask adherence, none reported a high COVID-19 rate. States with the lowest levels of mask adherence were most likely to have high COVID-19 rates in the subsequent month, independent of mask policy or demographic factors. Mean COVID-19 rates for states with at least 75% mask adherence in the preceding month was 109.26 per 100,000 compared to 249.99 per 100,000 for those with less adherence. Our analysis suggests high adherence to mask wearing could be a key factor in reducing the spread of COVID-19.
An evidence review of face masks against COVID-19 | PNAS
Jeremy Howard, Austin Huang a écrit :
The preponderance of evidence indicates that mask wearing reduces transmissibility per contact by reducing transmission of infected respiratory particles in both laboratory and clinical contexts. Public mask wearing is most effective at reducing spread of the virus when compliance is high. Given the current shortages of medical masks, we recommend the adoption of public cloth mask wearing, as an effective form of source control, in conjunction with existing hygiene, distancing, and contact tracing strategies.
The role of mask mandates, stay at home orders and school closure in curbing the COVID-19 pandemic prior to vaccination | Request PDF
Bhuma Krishnamachari a écrit :
Faster implementation of mask mandates was consistently shown to be protective. States with mask mandates made at three to six months had a 1.61 times higher rate than those who implemented within one month (adjusted rate ratio = 1.61, 95% confidence interval: 1.23-2.10, P = .001). States with mask mandates made after 6 months or with no mandate had a 2.16 times higher rate than those who implemented within 1 month (adjusted rate ratio = 2.16, 95% confidence interval: 1.64-2.88, P < .0001). In contrast, both stay at home orders and school closures had no significant influence on disease trajectory. Discussion: The benefits of mask mandates are apparent, especially when mandates were issued within a month. The impact of school closing and stay at home orders were less clear. Conclusions: Our results suggest that of the different physical distancing measures implemented by the government, mask mandates are the most important.
Decline in COVID-19 Hospitalization Growth Rates Associated with Statewide Mask Mandates ? 10 States, March?October 2020 | MMWR
Heesoo Joo a écrit :
Findings from this study suggest that statewide mask mandates were associated with statistically significant declines in weekly COVID-19 hospitalization growth rates for adults aged 40–64 years <3 weeks after the week that the mandate was implemented, and for adults aged 18–64 years ≥3 weeks after the implementation week
Pourriez-vous poster des liens vers des articles montrant que les Etats n’ayant pas mis en place de mesures de confinement ont souvent de meilleurs résultats que ceux ayant adopté les mesures les plus strictes?