
Immunophenotyping Assessment in a COVID-19 Cohort
Coronavirus Disease 2019 (COVID-19)SARS-CoV-2This surveillance study will collect detailed clinical, laboratory, and radiographic data in coordination with biologic sampling of blood and respiratory secretions and viral shedding in nasal secretions in order to identify immunophenotypic and genomic features of COVID-19 -related susceptibility and/or progression. The aim: for the results obtained from this study to assist in generating hypotheses for effective host-directed therapeutic interventions, to help to prioritize proposals for such interventions, and/or optimize timing for administration of host-response directed therapeutics.

Chemoprevention Clinical Trial of COVID-19: Hydroxychloroquine Post Exposure Prophylaxis
SARS-CoV InfectionProtocol summary Title A Prospective, randomized, adaptive phase II/III clinical trial, controlled, open-label, chemoprevention, 3-arms, parallel, multi-centred, to A Prospective, randomized, clinical trial, controlled, open-label, 3-arms, parallel, multi-centred, chemoprevention of COVID-19: Hydroxychloroquine Post Exposure Prophylaxis For COVID-19 Study Periods & Duration of Treatment Study Duration: 6 months Approval (IRB and regulatory bodies) 1 month Recruitment and follow-up: 3 months Analysis, report writing and submission of publications 1 month This study is a parallel study of one period with an expected duration of treatment (for each subject) of 28 days, Objectives To evaluate if hydroxychloroquine with the proposed dose can provide potent chemoprophylaxis against the development of COVID-19 positive patients in subjects who had primary exposure to COVID-19 positive patients. To measure the incidence of potential adverse drug reaction rates for giving hydroxychloroquine for prevention of COVID-19 amongst close contacts To provide early analysis of results and redefine sample size accordingly. identifying subjects most likely to benefit during the phase II and focusing recruitment efforts on them during phase III stopping one arm or the whole trial at an early stage for success or lack of efficacy based on phase II study results Design Prospective, Randomized, open-label, three-arm, parallel, adaptive phase II/III controlled study in which subjects will be randomly assigned in a 1:1:1 ratio as per the following: Arm-1: hydroxychloroquine 800mg (400mg twice daily) given orally on day 1, (loading dose) hydroxychloroquine. Then 400mg (200mg 2 tablets) on day 2,3, 4 and 5. Arm-2: hydroxychloroquine 400mg (200mg twice daily) Given orally first day (loading dose), then 200mg once daily on day 2,3, 4 and 5. Arm-3: No Intervention- SARS-CoV-2 surveillance Standard control measures in the country of interest such as self isolation, good personal hygiene and good nutrition.

Effect of Using Barrier Devices for Intubation in COVID-19 Patients
IntubationIntratracheal1 moreThe aim of this study is to compare the impact of using the aerosol box and transparent sheet as an adjunct to conventional personal protective equipment on endotracheal intubation of COVID-19 patients. The effect of the head of the bed elevation will also be evaluated during the mentioned simulated scenarios.

COVID 19 Serology in Pulmonologists
Covid 19Respiratory physicians are highly exposed workers to Covid-19 as they perform spirometry, endoscopy, and manage Covid-19 in first line for most of them. Moreover, none reported to have apply increased levels of protection for performing these acts in the most active period of viral circulation, until the lockdown. Whether they were most frequently immunized against SARS-CoV-2 at the end of the first wave than the general population is of utmost importance individually but also worldwide

Rapid Diagnostic Profiling of SARS-CoV-2 (COVID-19)
SARS-CoV-2COVID-19The investigators will evaluate the profile of the immune response of Ethiopian population and examine its relationship with the noted low CD4+ T-cell count and underlying immune activation status among participants with COVID-19 and will compare results with those residing in Europe. In addition, this project will evaluate the performance of various rapid diagnostic tests (RDTs) for SARS-CoV-2, taking into account the above-determined immune system characteristics. We will also evaluate the effect of co-infection with parasites on COVID-19 severity

Influence of Military Preventive Policy for reCruit Training on COVID-19 Seroconversion
SARS-CoV InfectionVitamin D Deficiency2 moreThis study is intended to address the association between vitamin D status and seroconversion to SARS-CoV-2 in healthy young adults. The primary aim of the study is to determine the rates of 'silent' seroconversion rates, consistent with asymptomatic transmission of SARS-CoV-2, in a young healthy adult population with a wide spread of vitamin D concentrations. The secondary aims of this study are to explore: Any effect of vitamin D status on symptomatic illness. The background 'point' prevalence and subsequent rate of increase in seropositivity for SARS-CoV-2 in healthy young adults. The individual reductions in seropositivity to SARS-CoV-2 over time, and changes in seropositivity in a defined young adult population over time. Where salivary Immunoglobulin A (IgA) may be used to provide an alternative/ complementary serological method The effect (if any) of vitamin D supplementation on seroconversion rates stratified by: i) level of baseline vitamin D 'deficiency/ insufficiency/ sufficiency' status; ii) extent of BMI-defined normal/overweight/obesity cut-offs and iii) gender.

Efficacy and Safety of Guduchi Ghan Vati for Covid-19 Asymptomatic Patients
Covid19Asymptomatic ConditionCoronavirus disease 2019 (Covid-19) has been declared global emergency with immediate safety, preventative and curative measures to control the spread of virus. Confirmed cases are treated with clinical management as they are diagnosed but so far, there is no effective treatment or vaccine yet for Covid-19. With recommended guidelines of AYUSH Ministry, India, the use of Ayurveda for Covid-19 has increased; however, its efficacy and safety in Covid-19 confirmed patients remain unclear. Present study examined the efficacy and safety of one of the recommended Ayurveda drug (Guduchi Ghan Vati) compared with standard care for patients with asymptomatic Covid-19 patients.

The Heart Hive COVID-19 Study
COVID-19CardiomyopathiesAll patients with heart disease should have the opportunity to participate in research into their condition, to advance knowledge and treatment. The HeartHive COVID-19 study is an international online pilot observational cohort study evaluating the impact and clinical outcomes of the COVID-19 pandemic on subjects enrolled in the HeartHive. Cardiomyopathies are progressive diseases, and there is a need to better understand what factors affect the chances of developing cardiomyopathy, and how the condition progresses. The impact of the COVID-19 pandemic on patients with cardiomyopathy has not been explored and represents a critical unmet need. Insights into exposure, healthcare outcomes, behavioural changes and the psychosocial ramifications of the pandemic are required to better understand the health needs of this population during these unprecedented circumstances and to adapt clinical services to meet these. The study will entail completing serial online surveys during the pandemic. This study uses The Heart Hive - an international, online registry of patients with self-reported clinically diagnosed cardiomyopathy, and people without heart disease. Participants enrol and upload their own data through the website. It is the second research study that will be offered to registry participants and delivered through The Heart Hive platform.

Forecast Number of Covid-19 Cases Worldwide
Covid-19Coronavirus disease-19 (Covid-19) had an unprecedented effect on both nations and health systems. Time series modeling using Auto-Regressive Integrated Moving Averages (ARIMA) models have been used to forecast variables extensively mainly in statistics and econometrics. The investigators aimed to predict the total number of cases for Covid-19 using ARIMA models of time-series analysis.

Phase I/II Trial of Povidone-iodine (PVP-I) Nasal Swab For Preventing COVID-19 Spread in Healthy...
Covid19Povidone Iodine Adverse ReactionTitle: Phase I/II Trial (Safety and Dosing) of Povidone-iodine (PVP-I) Nasal Swab For Preventing COVID-19 Spread in Healthy Subjects: Summary: This study will evaluate in a PH I/II trial in healthy volunteers the safety and tolerability of PVP-I nasal swabs daily application. The intent is to follow with a PH III randomized controlled clinical trial to assess the capacity for PVP-I nasal swabs to mitigate the transmission of respiratory viruses specifically COVID 19.