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The Effect of Face Masks on Covid Transmission: A Meta-Analysis
Lušková, Martina ; Havránková, Zuzana (advisor) ; Bertoli, Paola (referee)
The effect of face masks on Covid-19 transmission is crucial for the health of populations. Nevertheless, its economic consequences cannot be overlooked. To perform a quantitative meta-analysis, 258 estimates from 44 primary studies were collected together with more than 30 variables mirroring the differences among the studies. Publication bias was examined by implementing various statistical tests resulting in mild evidence for the phenomenon. We contribute to other meta-analyses on the topic by employing the Bayesian and Frequen- tist model averaging to identify the drivers behind the heterogeneity of the estimates. The results suggest that temperature, geographical latitude, and panel data structure have a highly statistically significant and positive effect on the risk of transmission associated with mask-wearing. Moreover, a pos- itive effect was identified for healthcare set-up. In contrast, performing an aerosol-generating procedure shifts the risk in the negative direction. JEL Classification I1, I11, I19, Keywords meta-analysis, Covid-19, face masks, pan- demic, Covid-19 transmission, publication bias, Bayesian model averaging Title The Effect of Face Masks on Covid Transmis- sion: A Meta-Analysis
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The influence of personality and selected media on the perception of the Covid-19 pandemic
El Hadjoine, Muhamed Amin ; Vranka, Marek (advisor) ; Ježková, Tereza (referee)
The subject of this diploma thesis is the issue of spreading false reports about the disease COVID-19. The work aims to map the relationship between personality traits, political orientation, used sources of information, and susceptibility to conspiracy theories in the Slovak Republic with the help of quantitative research, specifically a questionnaire survey. The theoretical part of the thesis explains the key concepts, concepts related to false reports, their characteristics and dissemination practices. Following the set goals, it presents psychological factors that influence the spread of false information, justifies the tendency of a large part of the population to trust false reports, and presents the concepts of a five-factor model of personality and cognitive reflection testing. The practical part of the work is devoted to research, the aim of which was to present the factors influencing the tendency to consider false reports about the disease COVID-19 to be credible. Greater attention has been paid to the influence of individuals' personalities on their attitudes to pandemics. The data collected in the form of a questionnaire survey suggest that personality characteristics do not have a significant effect on the tendency to believe in false reports. However, research suggests that...
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Communication of Czech Government during the COVID-19 pandemic
Balážová, Zuzana ; Hájek, Lukáš (advisor) ; Bahenský, Vojtěch (referee)
The bachelor thesis Communication of the government of the Czech Republic during the COVID-19 pandemic deals with the communication of selected representatives of Czech government. The work examines the communication of the Prime Minister, the Deputy Prime Minister and the Ministers of Health. The first section of the thesis focuses on theoretical starting points of the field of government communication, its multidisciplinary nature as well as definition. Due to the ongoing pandemic, the theoretical framework was broadened with crisis communication. At the end of the first section, a model of ideal government communication during the crisis was presented. The aim of the work was to find out whether the government of the Czech Republic fulfilled the theoretical prerequisites for successful communication according to this model. Qualitative methods of analysis were complemented with quantitative methods for a better analysis of communication. The results showed that the communication of the selected members of the government did not fulfill the theoretical prerequisites of successful communication, as they did not fulfill most of the elements of the defined model.
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Influence of sigle nucleotide mutations on influenza pathogenicity
Nitkulincová, Lucie ; Drda Morávková, Alena (advisor) ; Král, Jiří (referee)
Influenza virus caused several times the global concerns about the emergence of pandemics, in recent years. The most serious problem, in the fight against this virus, is its ability to quickly change its unusually antigenic specificity by reassortment and point mutations, especially in surface glycoproteins - haemagglutinin and neuraminidase. In this thesis I focused on point mutations in the hemagglutinin of influenza virus causing change in binding preference, which enables both influenza virus transmission between different hosts and unlimited proliferation in their tissues. The permanent change in amino acid sequence and thus the surface of hemagglutinin also largely prevents the host's immune system to destroy the virus efficiently and quickly enough to recognize when another infection. Each of the haemagglutinin subtypes has a different amino acid positions affecting its binding preference. Their summary is included in this thesis. Key words: influenza, single nucleotide mutations, pandemia, patoghenicity, hemagglutinin
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Influence of sigle nucleotide mutations on influenza pathogenicity
Nitkulincová, Lucie ; Drda Morávková, Alena (advisor) ; Král, Jiří (referee)
Influenza virus caused several times the global concerns about the emergence of pandemics, in recent years. The most serious problem, in the fight against this virus, is its ability to quickly change its unusually antigenic specificity by reassortment and point mutations, especially in surface glycoproteins - haemagglutinin and neuraminidase. In this thesis I focused on point mutations in the hemagglutinin of influenza virus causing change in binding preference, which enables both influenza virus transmission between different hosts and unlimited proliferation in their tissues. The permanent change in amino acid sequence and thus the surface of hemagglutinin also largely prevents the host's immune system to destroy the virus efficiently and quickly enough to recognize when another infection. Each of the haemagglutinin subtypes has a different amino acid positions affecting its binding preference. Their summary is included in this thesis. Key words: influenza, single nucleotide mutations, pandemia, patoghenicity, hemagglutinin
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