| Autor: |
Lima HdN, Wollmann Gm, Mazin Sc, Franca PHCd, Radtke Re, Delatorre Ldc, Silva JRd, Conzatti Vs, Diegoli H, Bett K, Safanelli J |
| Rok vydání: |
2021 |
| Předmět: |
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| DOI: |
10.1101/2021.02.08.21251009 |
| Popis: |
BackgroundThe city of Joinville had been mildly affected by the COVID-19 pandemic until June 2020. This study aimed to longitudinally assess the prevalence of exposure to the virus and social distancing practices in the local population.MethodsA randomized selection of households stratified by region was created. From June 15 to August 7, 2020, a dweller was randomized in each household, answered a questionnaire, and performed a test for the detection of SARS-CoV-2 antibodies. The prevalence of positive tests was calculated for each week and adjusted for the test’s sensitivity and specificity.ResultsThe adjusted proportion of positive results increased from 1.4% in the first week (margin of error [ME] 0% to 2.87%) to 13.38% in the eighth week (ME 10.22% to 16.54%). Among the 213 participants that tested positive, 55 (25.82%) were asymptomatic. Only 37 (17.37%) sought medical consultation for any symptom. Among the 77 (36.15%) that were leaving home to work or study, only 18 (23.38%) stopped due to any symptom. The proportion that referred going to bars, restaurants, or making non-essential shopping decreased from 20.56% in the first week to 8.61% during the peak of diagnoses.ConclusionThe low proportion of participants that sought medical consultation or stopped leaving home indicates strategies directed to isolate only those symptomatic reach a low proportion of infected patients. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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