Articles: sars-cov-2.
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Air travel may be associated with viruses spread via infected passengers and potentially through in-flight transmission. Given the novelty of the Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus, transmission associated with air travel is based on transmission dynamics of other respiratory viruses. Our objective was to provide a rapid summary and evaluation of relevant data on SARS-CoV-2 transmission aboard aircraft, report policy implications and to highlight research gaps requiring urgent attention. ⋯ Current evidence suggests SARS-CoV-2 can be transmitted during aircraft travel, but published data do not permit any conclusive assessment of likelihood and extent. The variation in design and methodology restricts the comparison of findings across studies. Standardized guidelines for conducting and reporting future studies of transmission on aircraft should be developed.
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The Delta variant is now replacing all other SARS-CoV-2 variants. We found a mean R0 of 5.08, which is much higher than the R0 of the ancestral strain of 2.79. Rapidly ramping up vaccine coverage rates while enhancing public health and social measures is now even more urgent and important.
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Since March 2020, 11 lineages of severe acute respiratory syndrome coronavirus 2 have been identified in Sergipe state, Northeast Brazil. During the first 6 months of coronavirus disease 2019 (COVID-19) outbreak, there was a higher frequency of B.1 (58.5%) and B.1.1.33 (17.1%) lineages. During the second wave of COVID-19, there was an increased frequency of P.1 (55.6%), the new Brazilian variant of concern.
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Background and Objectives: Due to the specific working conditions dental professionals represent a group of high risk of infection and COVID-19 pandemic in many ways have influenced their working environment. The aim of this study was to evaluate effects of COVID-19 pandemic on working conditions of dentists in Poland and Turkey. Materials and Methods: The study was an anonymous online questionnaire conducted among thedentists in two countries: Poland and Turkey. ⋯ Conclusions: COVID-19 pandemic has influenced working conditions of dentists. Many dentists got infected during the pandemic, dental procedures' time has increased, and protective equipment usage has become higher. Further studies analyzing the working conditions of dentists during COVID-19 pandemic should be conducted for better planning of future decisions taken by governments and authorities.