scholarly journals Standardised, quantitative neutralisation responses to SARS-CoV-2 Variants of Concern by convalescent anti-sera from first wave infections of UK Health Care Workers and Patients

Author(s):  
Diego Cantoni ◽  
Martin Mayora-Neto ◽  
Angalee Nadesalingam ◽  
David A. Wells ◽  
George W. Carnell ◽  
...  

One of the defining criteria of Variants of Concern (VOC) is their ability to evade pre-existing immunity, increased transmissibility, morbidity and/or mortality. Here we examine the capacity of convalescent plasma, from a well defined cohort of healthcare workers (HCW) and Patients infected during the first wave from a national critical care centre in the UK, to neutralise B.1.1.298 variant and three VOCs; B.1.1.7, B.1.351 and P.1. Furthermore, to enable lab to lab, country to country comparisons we utilised the World Health Organisation (WHO) International Standard for anti-SARS-CoV-2 Immunoglobulin to report neutralisation findings in International Units. These findings demonstrate a significant reduction in the ability of first wave convalescent plasma to neutralise the VOCs. In addition, Patients and HCWs with more severe COVID-19 were found to have higher antibody titres and to neutralise the VOCs more effectively than individuals with milder symptoms. Widespread use of the WHO International Standard by laboratories in different countries will allow for cross-laboratory comparisons, to benchmark and to establish thresholds of protection against SARS-CoV-2 and levels of immunity in different settings and countries.

1990 ◽  
Vol 64 (02) ◽  
pp. 267-269 ◽  
Author(s):  
A B Heath ◽  
P J Gaffney

SummaryAn International Standard for Streptokinase - Streptodomase (62/7) has been used to calibrate high purity clinical batches of SK since 1965. An international collaborative study, involving six laboratories, was undertaken to replace this standard with a high purity standard for SK. Two candidate preparations (88/826 and 88/824) were compared by a clot lysis assay with the current standard (62/7). Potencies of 671 i.u. and 461 i.u. were established for preparations A (88/826) and B (88/824), respectively.Either preparation appeared suitable to serve as a standard for SK. However, each ampoule of preparation A (88/826) contains a more appropriate amount of SK activity for potency testing, and is therefore preferred. Accelerated degradation tests indicate that preparation A (88/826) is very stable.The high purity streptokinase preparation, coded 88/826, has been established by the World Health Organisation as the 2nd International Standard for Streptokinase, with an assigned potency of 700 i.u. per ampoule.


Author(s):  
Jordan Bell ◽  
Lis Neubeck ◽  
Kai Jin ◽  
Paul Kelly ◽  
Coral L. Hanson

Physical activity referral schemes (PARS) are a popular physical activity (PA) intervention in the UK. Little is known about the type, intensity and duration of PA undertaken during and post PARS. We calculated weekly leisure centre-based moderate/vigorous PA for PARS participants (n = 448) and PARS completers (n = 746) in Northumberland, UK, between March 2019–February 2020 using administrative data. We categorised activity levels (<30 min/week, 30–149 min/week and ≥150 min/week) and used ordinal regression to examine predictors for activity category achieved. PARS participants took part in a median of 57.0 min (IQR 26.0–90.0) and PARS completers a median of 68.0 min (IQR 42.0–100.0) moderate/vigorous leisure centre-based PA per week. Being a PARS completer (OR: 2.14, 95% CI: 1.61–2.82) was a positive predictor of achieving a higher level of physical activity category compared to PARS participants. Female PARS participants were less likely (OR: 0.65, 95% CI: 0.43–0.97) to achieve ≥30 min of moderate/vigorous LCPA per week compared to male PARS participants. PARS participants achieved 38.0% and PARS completers 45.3% of the World Health Organisation recommended ≥150 min of moderate/vigorous weekly PA through leisure centre use. Strategies integrated within PARS to promote PA outside of leisure centre-based activity may help participants achieve PA guidelines.


Author(s):  
Averil Price

This article provides some background to the Safe Communities concept and sets out the criteria to be satisfied as an International Safe Community (ISC). It concludes with reflections about Chelmsford Borough Council’s responsibilities as a Demonstration Site within the UK, and how Council has contributed within an International Network.There are currently over 200 communities across the world that have been designated as International Safe Communities by the World Health Organisation (WHO), and in June 2010, the Chelmsford Borough Council became the first local authority area to achieve this recognition in the UK. International Safe Communities is a World Health Organisation initiative that recognises safety as a ‘universal concern and a responsibility for all’. 1 It is an approach to community safety that encourages greater cooperation and collaboration between a range of non-government organisations, the business sector and local and government agencies. In order to be designated as an ISC, communities are required to meet six criteria developed by the WHO Collaborating Centre on Community Safety. The ISC accreditation process provides support for communities and indicates a level of achievement by an organisation within the field of community safety.


2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
David Brown ◽  
Anthony R. Fooks ◽  
Martin Schweiger

Intradermal rabies vaccine is recommended by the World Health Organisation, but not all countries, including England, follow this recommendation. A group of 12 adults in England previously given pre-exposure intradermal rabies vaccine were considered to be non-immune to rabies because their rabies antibody titres were known to be less than 0.5 IU/mL. A cohort study examined the immunizing effect of increasing the participants' cumulative dose of intradermal rabies to 2.0 IU. All patients subsequently demonstrated rabies antibody levels >0.5 IU⋅mL supporting evidence of adequate sero-conversion. No adverse effects of intradermal rabies vaccine boosting were noted. Within the limits of a small study the findings support the hypothesis that adequate levels of rabies antibody can be achieved by a schedule of intradermal injections delivered on at least three occasions with a cumulative rabies vaccine dose of 2.0 IU.


2021 ◽  
Vol 55 (1) ◽  
pp. 72-83 ◽  
Author(s):  
Tamiris Cristhina Resende ◽  
Marco Antonio Catussi Paschoalotto ◽  
Stephen Peckham ◽  
Claudia Souza Passador ◽  
João Luiz Passador

Abstract This paper aims to analyse the coordination and cooperation in Primary Health Care (PHC) measures adopted by the British government against the spread of the COVID-19. PHC is clearly part of the solution founded by governments across the world to fight against the spread of the virus. Data analysis was performed based on coordination, cooperation, and PHC literature crossed with documentary analysis of the situation reports released by the World Health Organisation and documents, guides, speeches and action plans on the official UK government website. The measures adopted by the United Kingdom were analysed in four periods, which helps to explain the courses of action during the pandemic: pre-first case (January 22- January 31, 2020), developing prevention measures (February 1 -February 29, 2020), first Action Plan (March 1- March 23, 2020) and lockdown (March 24-May 6, 2020). Despite the lack of consensus in essential matters such as Brexit, the nations in the United Kingdom are working together with a high level of cooperation and coordination in decision-making during the COVID-19 pandemic.


2020 ◽  
Author(s):  
Yingxiang Huang ◽  
Dina Radenkovic ◽  
Kevin Perez ◽  
Kari Nadeau ◽  
Eric Verdin ◽  
...  

BACKGROUND The COVID-19 pandemic continues to ravage and burden hospitals around the world. The epidemic started in Wuhan, China, and was subsequently recognized by the World Health Organization as an international public health emergency and declared a pandemic in March 2020. Since then, the disruptions caused by the COVID-19 pandemic have had an unparalleled effect on all aspects of life. OBJECTIVE With increasing total hospitalization and intensive care unit admissions, a better understanding of features related to patients with COVID-19 could help health care workers stratify patients based on the risk of developing a more severe case of COVID-19. Using predictive models, we strive to select the features that are most associated with more severe cases of COVID-19. METHODS Over 3 million participants reported their potential symptoms of COVID-19, along with their comorbidities and demographic information, on a smartphone-based app. Using data from the >10,000 individuals who indicated that they had tested positive for COVID-19 in the United Kingdom, we leveraged the Elastic Net regularized binary classifier to derive the predictors that are most correlated with users having a severe enough case of COVID-19 to seek treatment in a hospital setting. We then analyzed such features in relation to age and other demographics and their longitudinal trend. RESULTS The most predictive features found include fever, use of immunosuppressant medication, use of a mobility aid, shortness of breath, and severe fatigue. Such features are age-related, and some are disproportionally high in minority populations. CONCLUSIONS Predictors selected from the predictive models can be used to stratify patients into groups based on how much medical attention they are expected to require. This could help health care workers devote valuable resources to prevent the escalation of the disease in vulnerable populations.


POCUS Journal ◽  
2020 ◽  
Vol 5 (1) ◽  
pp. 26-28
Author(s):  
Sheena Bhimji-Hewitt MAppSc; DMS, CRGS, RDMS

Novel Corona Virus Disease-19 (nCov-19, COVID-19) was recognised as a pandemic by the World Health Organization on March 11, 2020. As of June 14, 2020, this contagious viral disease has afflicted 188 out of 195 countries in the world with 7,893,700 confirmed cases and 432,922 global deaths. Canada has 98,787 people infected and 8,146 deaths. COVID-19 is thought to transmit through contact, droplets and aerosolization. A rapid review showed limited information on the benefits of conducting lung ultrasound (LUS) versus chest radiograph (CXR) or studies correlating lung ultrasound to chest computed Tomography (CT) in patients positive for Covid-19. The literature review confirmed that CT and LUS cannot diagnose this disease, but that both can help in the management and staging of this disease. There is no literature to prove that LUS at the bedside may be beneficial from the view of decreased transmission to other health care workers and bystanders due to reduced transit but comparing the transit pathway and contact leads one to propose that this would be so. Pregnant patients with COVID-19, young children and patients in the reproductive stage would also benefit from LUS since there is no radiation dose and the critical patient in distress will benefit from testing at the bedside.


2020 ◽  
Vol 11 (SPL1) ◽  
pp. 1469-1472
Author(s):  
Kajal Gandhi ◽  
Kumar Gaurav Chhabra ◽  
Revati More ◽  
Ankita Rathi ◽  
Gargi Nimbulkar ◽  
...  

The Coronavirus Disease 2019 started in Wuhan Province, China and which spread to half a dozen countries between 2019 and 2020 and was declared a pandemic. This resulted in the implementation of a lockdown in different parts of the world, explaining it was an effective and essential way to break the cycle of infection. Physical distancing is the most important measure to break this infection cycle which affected many people's lives in different aspects. Mental health is considered to be one of the important components of the overall health as the definition given by the World Health Organization. It says that the person should be well-adjusted with the environment and should not be easily upset. He should know his needs, problems and goals properly; moreover, if he faces problems, he tries to solve them intelligently for which he tries to cope up with stress and anxiety. Along with all these things, he has good self-control balances between rationality and emotionality. It has likewise set off a wide variety of mental issues, for example, anxiety, panic disorder and depression. Most of the studies have reported negative impacts, including anger, stress symptoms and confusion. Education and training on pandemic should be provided by the authorities and health care workers.


Author(s):  
Pratibha Mane ◽  
Jyoti Sangwan ◽  
Kirti Lohan

Background: Coronavirus disease 2019 (COVID-19) is an infectious disease reported in China initially which spread around the world in no time affecting millions of people. It is caused by a new coronavirus (SARS-CoV-2 or 2019 n-CoV). The healthcare workers (HCW) are at increased risk of acquiring the disease as well as antibody response.Methods: 457 health care workers (HCW) were recruited to give blood samples for anti-SARS CoV-2 IgG testing between September to October 2020.Results: Of the 457 participants, IgG antibodies against SARS-CoV-2 were detected in 116 health care workers (25.4%). The anti-SARS-CoV-2 antibodies were detected maximally in HCWs involved in laboratory work. Around 4 % of health care workers were RT-PCR positive form whom IgG were detected in 15 individuals (71.4%) only.Conclusions: The study concludes a higher prevalence among health care workers involved with patient’s samples and laboratory.


2021 ◽  
Vol 15 (1) ◽  
pp. 1
Author(s):  
Mutiara Adelina ◽  
Fifi Dwijayanti

Infectious diseases are one of the biggest threats to humans. Currently, the world is in the outbreak condition causes of the COVID-19 virus which is started from Wuhan, China in December 2019. This disease was spread out rapidly throughout the World and was announced as a pandemic by the World Health Organization (WHO) on March 11, 2020(1). The infected number of SARS-CoV-2 was over 84 million people and caused over 1 million death cases in the worldwide. Indonesia had more than 800.000 infectious cases and 23.000 of death cases with the highest cases in Jakarta (2). This virus can be transmitted by two ways, such as direct contact (cough, sneeze, and droplet inhalation) and contact transmission (contact with oral, nasal, and eye mucous membranes) of person with COVID-19 (3). The current COVID-19 pandemic makes various challenges in prevention and control of infections in hospitals. Health care workers (HCWs) have been providing care to suspected, probable or confirmed COVID-19 patients that make them in high-risk condition. Several study indicated that many HCWs have been infected with SARS-CoV-2 in many hospitals worldwide (4)(5)(6).


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