
Humoral and Cellular Immunity in First-cycle SARS-CoV-2 Vaccinated COVID-19 Patients
SARS CoV 2 InfectionCOVID-19Infection by the recent Coronavirus (SARS-CoV-2) has generated at a pandemic level a new pathology, called COVID-19, characterized by "flu-like" symptoms up to severe acute respiratory failure. The pathogenesis of the disease involves both humoral and cellular immunological responses; cell-mediated immunity is the first and most effective immune response to viral infection. To date, despite the extensive scientific research aimed at curing COVID-19, there are few effective means to tackle SARS-CoV-2 infection and reduce its disease progression. Among these, a first complete anti-SARS-CoV-2 vaccination course has been shown to significantly reduce the development of the disease towards the more severe forms requiring hospital and intensive care. On the other hand, over time the antibody response induced by vaccines against SARS-CoV-2 decreases, so much so as to indicate the need for a third booster dose. This translates into the fact that some patients who have undergone a complete first vaccination course, with third dose booster indications, develop severe critical disease, with the need for hospitalization. On the other hand, other patients with the same vaccination status do not develop the disease, although they are also positive for SARS-CoV-2. The investigators therefore hypothesized that the humoral and cell-mediated response among groups of patients may be radically different. For these reasons, the investigators designed this observational pilot study in order to analyze humoral and cell-mediated responses in SARS-CoV-2 positive first complete vaccination patients.

TekiTrust Tests to Determine the Level of SARS-COV-2/COVID-19 Neutralizing Antibodies in the Blood...
SARS-CoV2 InfectionThe purpose of this study is to determine if the TekiTrust Enzyme-Linked Immunosorbent Assay (ELISA) Kit and TekiTrust Rapid Test can accurately determine the amount of antibodies to fight the COVID-19 virus in sampled blood compared to the standard Plaque Reduction Neutralization Test (PRNT) test. When a person has COVID-19 they develop antibodies to the virus which are contained in their blood stream. After a certain period, the number of antibodies to fight (neutralize) the virus begin to decrease. One common way to measure the amount of antibodies in the blood is to use a test called the PRNT. The focus of this study is to compare the ability of the TekiTrust ELISA Kit and the TekiTrust Rapid Test with the PRNT to determine if these tests can measure the antibodies equally well.

Seroprevalence of Infection-induced SARS-CoV-2 Antibodies (COVID-19) in Children
COVID-19It is unknown what proportion of children have been exposed to SARS-CoV-2 and how many have antibodies among children seeking medical care for non-Covid-19 related conditions. The aim of this study is to identify children with IgG antibodies to SARS-CoV-2 who have not been previously diagnosed and are presumed/confirmed Covid-19 negative, then determine the level of immunity in this population which could inform further decisions about covid-19 vaccine strategies for children

Cardiac Manifestation in Adolescent After Pfizer COVID-19 Injection in Thailand
Covid-19 VaccineRationale Recently, a CDC advisory Committee on Immunization Practices identified a likely association between the 2 COVID-19 mRNA vaccines from Pfizer-BioNTech and Moderna and cases of myocarditis and pericarditis. For the cardiovascular system, 4863 adverse events (AEs) were reported from the Pfizer vaccine. Common findings observed with vaccines under study were tachycardia(16.41%), flushing (12.17%), hypertension (5.82%), hypotension (3.6%), and increased heart rate (9.03%). In this study we characterized, classified, evaluate the dynamic of cardiac function and ECG abnormality after the Pfizer vaccine injection. This is a prospective cohort study. All participants aged 13-18 years old and above who visited the second dose Pfizer covid-19 vaccine injection to determine cardiac manifestation. Methods for analyzing research data The data will be collected from students enrollment at Kong thabbok upatham changkol kho so tho bo school and Wachirathamsatit school. The participant's history, physical exam, and laboratory data will be reviewed and data will be extracted based on the case record form (CRF). All data will be stored securely and analyzed using the SPSS® Statistics Version 23 developed by IBM®. Data entry will be carried out using coding and verification. Quantitative data will be expressed as mean with standard deviation (SD) or median (IQR) and qualitative data will be presented as a number of observations with percentage (%). Descriptive statistics will be used to summarize the baseline values and demographic data. All p-values will be derived using the 2-tailed testing, and statistical significance will be set at 0.05 probability. All the categorical variables will be analyzed using the chi-square (x2) or Fisher's exact test whichever is appropriate. Normality of the distribution will be tested for the continuous variable using the Kolmogorov- Smirnov test. All the variables with normal distributions will be compared using the independent t-test and will be reported as mean ± standard deviation (SD). The variables that do not pass the normality test will be compared by means of the Mann-Whitney U test and will be reported as the median and interquartile range (IQR).

Mental Health Outcomes in Healthcare Workers During COVID-19
Mental Health Wellness 1PTSD5 moreAn online survey will be sent to healthcare workers (HCWs) in acute care hospitals to explore a variety of risk factors for negative psychological outcomes and levels of anxiety, depression and post-traumatic stress symptoms using validated scales. It is important to understand the sources of negative psychological impact on HCWs during this COVID-19 pandemic before hospitals and organizations can address and develop support programs to mitigate the stresses experienced by healthcare workers. Addressing and supporting the needs of our HCWs will be paramount in this COVID-19 pandemic and future outbreaks.

Phase I/II Clinical Trial of Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector) in...
COVID-19This study is a phase I /II adaptive clinical trial to evaluate the safety, tolerability and the Immunogenicity of Ad5-nCoV in healthy adults from 18 to <55 and 65 to <85 years of age,with the randomized, observer-blind, dose-escalation design

A New Screening Strategy for 2019 Novel Coronavirus Infection
Novel Coronavirus Infection PneumoniaSince Dec 2019, over 70000 novel coronavirus infection pneumonia (NCIP) patients were confirmed. 2019 novel coronavirus (2019 nCoV) is a RNA virus, which spread mainly from person-to-person contact. Most of the symptoms are non-specific, including fever, fatigue, dry cough. Sever NCIP patients may have shortness of breath and dyspnea, and progress to acute respiratory distress syndrome (ARDS) and multiple organ dysfunction syndrome (MODS). The mortality is reported to be around 2.3%. Thus, early detection and early treatment is very important to the improvement of NCIP patients' prognosis. At present, NCIP RNA detection of pharyngeal swab specimen by RT-PCR is recommended. However, due to the universal susceptibility to 2019 nCoV in general population and limited number of NCIP RNA detection kits available, to identify an efficient screening strategy is urgently needed. This study aim to develop and validate the diagnostic accuracy and screening efficiency of a new NCIP screening strategy, which can benefit the disease prevention and control.

Study of the Increase in ICU Beds Capacity During COVID-19 Pandemic in France
Coronavirus InfectionsCOVID19 Outbreak in FranceFor preventing the overwhelming of ICU beds capacity during COVID-19 pandemic in France, national and regional Health-Care institutions decided to optimize the Intensive Care Unit beds availability by opening new ICU beds in institutions with and without prior ICU. The Present study was design to retrospectively describe the origin of the ICU beds and human resources created during the COVID-19 outbreak in France.

COVID-19 and Reorganisation of Cancer Patient Care: Self- Evaluation of Potential Post-traumatic...
CancerThe COVID-19 pandemic is a traumatic event which could lead to a greater risk of developing post-traumatic stress disorder, especially in cancer patients who feel more at risk of contracting the virus, and fear developing serious symptoms. The study's primary objective is to measure the presence of a potential post-traumatic stress disorder in cancer patients, and to assess the associated factors. The secondary objectives are to measure patients' anxiety, as well as their perception of both the management of their cancer care, and their fear of a cancer recurrence. It is a prospective, multi-centric study using self-assessing survey offered to cancer patients currently under ongoing care or treatment. The surveys will be sent by post at the beginning of the study, and again 6 months later. Expecting a participation rate of 40%, 4000 patients will be contacted, over a period of 3 months, in order to receive 1600 responses, and 640 responses 6 months later. Researching the factors associated with the appearance of post-traumatic stress could lead to better screening of patient disorders in highly anxiety-provoking crisis situations. As a result, it would lead to an improvement of their care, healthcare organization, and their follow-up in the case of a new epidemic or any other stressful event of this magnitude. Furthermore, promoting the patient's expression capabilities favors their implication in their care, and facilitates the development of health democracy.

Evaluation of ARFC Masks Equipped With CF5 Filter in the Care Unit to Allow a Wider Distribution...
NurseThe current outbreak of Covid-19 requires the wearing of FFP2 respiratory protective devices by healthcare personnel to limit their contamination. However, there is currently a shortage of masks in France due to insufficient national stocks while the disease is spreading. There is an urgent need to save FFP2 masks to enable healthcare personnel to continue to provide care in complete safety. Contamination of staff due to insufficient masks would have consequences by limiting access to care for infected patients and putting caregivers at potential risk of death. Caregiver protection is also intended to contain the risk of nosocomial epidemics. We propose the use of ARFC masks by Covid-19+ units. These ARFC masks provide optimal security against the risk of aerosolization of contaminated biological liquids. They are masks modified to be usable by civilians, resulting from the technology of combat masks, specially designed for use in NRBC (Nuclear, Radiological, Biological and Chemical) atmosphere.