scholarly journals The Effect of Vaccination Rates on the Infection of COVID-19 under the Vaccination Rate below the Herd Immunity Threshold

Author(s):  
Yi-Tui Chen

Although vaccination is carried out worldwide, the vaccination rate varies greatly. As of 24 May 2021, in some countries, the proportion of the population fully vaccinated against COVID-19 has exceeded 50%, but in many countries, this proportion is still very low, less than 1%. This article aims to explore the impact of vaccination on the spread of the COVID-19 pandemic. As the herd immunity of almost all countries in the world has not been reached, several countries were selected as sample cases by employing the following criteria: more than 60 vaccine doses per 100 people and a population of more than one million people. In the end, a total of eight countries/regions were selected, including Israel, the UAE, Chile, the United Kingdom, the United States, Hungary, and Qatar. The results find that vaccination has a major impact on reducing infection rates in all countries. However, the infection rate after vaccination showed two trends. One is an inverted U-shaped trend, and the other is an L-shaped trend. For those countries with an inverted U-shaped trend, the infection rate begins to decline when the vaccination rate reaches 1.46–50.91 doses per 100 people.

Author(s):  
A.V. Goncharenko ◽  
T.O. Safonova

The article investigates the impact of Great Britain on the evolution of colonialism in the late ХІХ and early ХХ centuries. It is analyzed the sources and scientific literature on the policy of the United Kingdom in the colonial question in the late ХІХ – early ХХ century. The reasons, course and consequences of the intensification of British policy in the colonial problem are described. The process of formation and implementation of London’s initiatives in the colonial question during the period under study is studied. It is considered the position of Great Britain on the transformation of the colonial system in the late XIX – early XX centuries. The resettlement activity of the British and the peculiarities of their mentality, based on the idea of racial superiority and the new national messianism, led to the formation of developed resettlement colonies. The war for the independence of the North American colonies led to the formation of a new state on their territory, and the rest of the “white” colonies of Great Britain had at the turn of the XIX-XX centuries had to build a new policy of relations, taking into account the influence of the United States on them, and the general decline of economic and military-strategic influence of Britain in the world, and the militarization of other leading countries. As a result, a commonwealth is formed instead of an empire. With regard to other dependent territories, there is also a change in policy towards the liberalization of colonial rule and concessions to local elites. In the late ХІХ – early ХІХ centuries the newly industrialized powers (Germany, Italy, and Japan) sought to seize the colonies to reaffirm their new status in the world, the great colonial powers of the past (Spain, Portugal, and the Netherlands) sought to retain what remained to preserve their international prestige, and Russia sought to expand. The largest colonial empires, Great Britain and France, were interested in maintaining the status quo. In the colonial policy of the United Kingdom, it is possible to trace a certain line related to attempts to preserve the situation in their remote possessions and not to get involved in conflicts and costly measures where this can be avoided. In this sense, the British government showed some flexibility and foresight – the relative weakening of the military and economic power of the empire due to the emergence of new states, as well as the achievement of certain self-sufficiency, made it necessary to reconsider traditional foreign policy. Colonies are increasingly no longer seen as personal acquisitions of states, and policy toward these territories is increasingly seen as a common deal of the international community and even its moral duty. The key role here was to be played by Great Britain, which was one of the first to form the foundations of a “neocolonial” system that presupposes a solidarity policy of Western countries towards the rest of the world under the auspices of London. Colonial system in the late ХІХ – early ХІХ century underwent a major transformation, which was associated with a set of factors, the main of which were – the emergence of new industrial powers on the world stage, the internal evolution of the British Empire, changes in world trade, the emergence of new weapons, general growth of national and religious identity and related with this contradiction. The fact that the First World War did not solve many problems, such as Japanese expansionism or British marinism, and caused new ones, primarily such as the Bolshevik coup in Russia and the coming to power of the National Socialists in Germany, the implementation of the above trends stretched to later moments.


2021 ◽  
Author(s):  
Joseph Angel De Soto ◽  
Babatunde Ojo

On March 17, 2020 the SARs-CoV-2 virus was first reported on the Navajo Reservation. Today, the Navajo Nation has a 147% higher infection rate and a 450% higher death rate than the national average. Despite this tragedy, a glaring question remains, what is happening among the Navajo children. The study found that Navajo children had an infection rate 220% higher than the general population and a death rate from COVID 1,400% greater than non-Navajo in the United States. This occurs even though of Navajo children having a much higher vaccination rate of 68% compared to about 25% of children Nationwide. The introduction of SARs-CoV variants such as the alpha and omicron variants did not seem to play a role in these findings. The higher infection rates suggest a genetic predisposition among the Navajo to SARs-CoV-2 via the ACE-2 receptor and signal transduction pathway while the increased death rates may also suggest inferior care provided by the Bureau of Indian Affairs Hospitals.


2021 ◽  
Author(s):  
Fang Fang ◽  
John David Clemens ◽  
Zuo-Feng Zhang ◽  
Timothy F. Brewer

Background: Despite safe and effective vaccines to prevent Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2) infections and disease, a substantial minority of the US remains resistant to getting vaccinated. It is imperative to know if expanding vaccination rates could reduce community-wide Coronavirus 2019 (COVID-19) disease, not just among those vaccinated. Methods: Negative binomial models were used to estimate associations between U.S. county-level vaccination rates and county-wide COVID-19 incidence and mortality between April 23rd and September 30th, 2021. A two-week lag and a four-week lag were introduced to assess vaccination rate impact on incidence and mortality, respectively. Stratified analyses were performed for county vaccination rates >40%, and before and after Delta became the dominant variant. Findings: Among 3,070 counties, each percentage increase in population vaccination rates reduced county-wide COVID-19 incidence by 0.9% (relative risk (RR) 0.9910 (95% CI: 0.9869, 0.9952)) and mortality by 1.9% (RR 0.9807 (95% CI: 0.9745, 0.9823)). Among counties with vaccination coverage >40%, each percentage increase in vaccination rates reduced COVID-19 disease by 1.5%, RR 0.9850 (95% CI: 0.9793, 0.9952) and mortality by 2.7% (RR 0.9727 (95% CI: 0.9632, 0.9823)). These associations were not observed among counties with <40% vaccination rates. Increasing vaccination rates from 40% to 80% would have reduced COVID-19 cases by 45.4% (RR 0.5458 (95% CI: 0.4335, 0.6873)) and deaths by 67.0% (RR 0.3305 (95% CI: 0.2230, 0.4898)). An estimated 5,989,952 COVID-19 cases could have been prevented and 127,596 lives saved had US population vaccination rates increased from 40% to 80%. Interpretations: Increasing U.S. SARS-CoV-2 vaccination rates results in population-wide reductions in COVID-19 incidence and mortality. Furthermore, increasing vaccination rates above 40% has protective effects among non-vaccinated persons. Given ongoing vaccine hesitancy in the U.S., increasing vaccination rates could better protect the entire community and potentially reach herd immunity. Funding: National Cancer Institute


2021 ◽  
Author(s):  
Arjun Puranik ◽  
AJ Venkatakrishnan ◽  
Colin Pawlowski ◽  
Bharathwaj Raghunathan ◽  
Eshwan Ramudu ◽  
...  

Real world evidence studies of mass vaccination across health systems have reaffirmed the safety1 and efficacy2,3 of the FDA-authorized mRNA vaccines for COVID-19. However, the impact of vaccination on community transmission remains to be characterized. Here, we compare the cumulative county-level vaccination rates with the corresponding COVID-19 incidence rates among 87 million individuals from 580 counties in the United States, including 12 million individuals who have received at least one vaccine dose. We find that cumulative county-level vaccination rate through March 1, 2021 is significantly associated with a concomitant decline in COVID-19 incidence (Spearman correlation ρ = −0.22, p-value = 8.3e-8), with stronger negative correlations in the Midwestern counties (ρ = −0.37, p-value = 1.3e-7) and Southern counties (ρ = −0.33, p-value = 4.5e-5) studied. Additionally, all examined US regions demonstrate significant negative correlations between cumulative COVID-19 incidence rate prior to the vaccine rollout and the decline in the COVID-19 incidence rate between December 1, 2020 and March 1, 2021, with the US western region being particularly striking (ρ = −0.66, p-value = 5.3e-37). However, the cumulative vaccination rate and cumulative incidence rate are noted to be statistically independent variables, emphasizing the need to continue the ongoing vaccination roll out at scale. Given confounders such as different coronavirus restrictions and mask mandates, varying population densities, and distinct levels of diagnostic testing and vaccine availabilities across US counties, we are advancing a public health resource to amplify transparency in vaccine efficacy monitoring (https://public.nferx.com/covid-monitor-lab/vaccinationcheck). Application of this resource highlights outliers like Dimmit county (Texas), where infection rates have increased significantly despite higher vaccination rates, ostensibly owing to amplified travel as a “vaccination hub”; as well as Henry county (Ohio) which encountered shipping delays leading to postponement of the vaccine clinics. This study underscores the importance of tying the ongoing vaccine rollout to a real-time monitor of spatio-temporal vaccine efficacy to help turn the tide of the COVID-19 pandemic.


Author(s):  
Van Thi Hong Loan

Public relations is practiced around the world from Western to Asian countries. Public relations theory was initially defined and formalised in the United States of America, and continued to evolve in Europe and the United Kingdom, but had a slower uptake of theory and its application to practice in Asia and other parts of the world. Within varied social and cultural environments, this research explores public relations in Vietnam - what public relations performs in the context of Vietnam where the culture values personal relationships. The exploratory study uses a qualitative research approach with the primary method of semistructured interviews of twenty-nine consultants and in-house public relations practitioners, in both Vietnamese and international organisations. The research found that Vietnamese public relations uses a one-way communication model proposed by Grunig & Hunt (1984). It simultaneously uses a two-way shared perspective which appears similar to the symmetrical model by Grunig & Hunt (1984) but the Vietnamese model focuses on relationships for communication. The study concludes that the nature of public relations in Vietnam is changed by the impact of the cultural factors.


2021 ◽  
Vol 118 (40) ◽  
pp. e2100991118
Author(s):  
Xuechunzi Bai ◽  
Varun Gauri ◽  
Susan T. Fiske

Global cooperation rests on popular endorsement of cosmopolitan values—putting all humanity equal to or ahead of conationals. Despite being comparative judgments that may trade off, even sacrifice, the in-group’s interests for the rest of the world, moral cosmopolitanism finds support in large, nationally representative surveys from Spain, the United Kingdom, Germany, China, Japan, the United States, Colombia, and Guatemala. A series of studies probe this trading off of the in-group’s interests against the world’s interests. Respondents everywhere distinguish preventing harm to foreign citizens, which almost all support, from redistributing resources, which only about half support. These two dimensions of moral cosmopolitanism, equitable security (preventing harm) and equitable benefits (redistributing resources), predict attitudes toward contested international policies, actual charitable donations, and preferences for mask and vaccine allocations in the COVID-19 response. The dimensions do not reflect several demographic variables and only weakly reflect political ideology. Moral cosmopolitanism also differs from related psychological constructs such as group identity. Finally, to understand the underlying thought structures, natural language processing reveals cognitive associations underlying moral cosmopolitanism (e.g., world, both) versus the alternative, parochial moral mindset (e.g., USA, first). Making these global or local terms accessible introduces an effective intervention that at least temporarily leads more people to behave like moral cosmopolitans.


2021 ◽  
Author(s):  
Tarcísio M. Rocha Filho ◽  
Marcelo A. Moret ◽  
José F. F. Mendes

AbstractWe present an analysis of the relationship between SARS-CoV-2 infection rates and a social distancing metric from data for all the states and most populous cities in the United States and Brazil, all the 22 European Economic Community countries and the United Kingdom. We discuss why the infection rate, instead of the effective reproduction number or growth rate of cases, is a proper choice to perform this analysis when considering a wide span of time. We obtain a strong Spearman’s rank order correlation between the social distancing metric and the infection rate in each locality. We show that mask mandates increase the values of Spearman’s correlation in the United States, where a mandate was adopted. We also obtain an explicit numerical relation between the infection rate and the social distancing metric defined in the present work.


Entropy ◽  
2021 ◽  
Vol 23 (11) ◽  
pp. 1530
Author(s):  
Tarcísio M. Rocha Filho ◽  
Marcelo A. Moret ◽  
José F. F. Mendes

We present an analysis of the relationship between SARS-CoV-2 infection rates and a social distancing metric from data for all the states and most populous cities in the United States and Brazil, all the 22 European Economic Community countries and the United Kingdom. We discuss why the infection rate, instead of the effective reproduction number or growth rate of cases, is a proper choice to perform this analysis when considering a wide span of time. We obtain a strong Spearman’s rank order correlation between the social distancing metric and the infection rate in each locality. We show that mask mandates increase the values of Spearman’s correlation in the United States, where a mandate was adopted. We also obtain an explicit numerical relation between the infection rate and the social distancing metric defined in the present work.


2021 ◽  
Vol 8 (7) ◽  
Author(s):  
Fayyaz Hussain Qureshi ◽  
Sarwar Khawaja

<p>The Covid-19 pandemic has impacted every aspect of human life. It has disrupted people’s lifestyles around the world and international students are no exception. Every industry has been affected, including higher education (HE); for the first time ever in the HE sector, learning and teaching adopted online platforms to deliver the curriculum. At the same time, there has been growing interest in the business of international students across the globe. More than five million international students are currently studying in higher education institutions (HEIs) outside their home countries. It is often assumed that HEIs consider international students a source of revenue and, therefore, seek to recruit as many as possible. The United Kingdom is the second largest and most popular global destination for international students after the United States. The primary purpose of this study is to assess the impact of COVID-19 on international student enrolment around the world in general and in the UK in particular. Our findings show that international students are cash cows, and COVID-19 had a significant impact on the recruitment of international students. </p><p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0865/a.php" alt="Hit counter" /></p>


2021 ◽  
pp. 107554702110569
Author(s):  
Amanda D. Boyd ◽  
Dedra Buchwald

COVID-19 vaccinations are the primary tool to end the pandemic. However, vaccine hesitancy continues to be a barrier to herd-immunity in the United States. American Indians (AI) often have higher levels of distrust in western medicine and lower levels of satisfaction with health care when compared to non-Hispanic Whites. Yet AIs have high COVID-19 vaccination rates. We discuss factors that influence AI risk perceptions of COVID-19 vaccinations including the impact of COVID-19 on AI Elders, community, and culture. We conclude with future research needs on vaccination communication and how culturally congruent communication campaigns may have contributed to high COVID-19 vaccination rates.


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