The 2019-2020 COVID-19 pandemic is the largest outbreak in recent history. It is notknown how long after someone gets sick with COVID-19 and recovers that they can stillinfect other people. It is also not known how quickly people make antibodies against thevirus, which help clear infection from the body. The investigators will enroll 300 peoplewho had COVID-19 based on lab testing or confirmed exposure to participate. An additional25 participants who have never tested positive for COVID and have not had the vaccinewill be enrolled as negative controls. Participants will complete a survey at enrollment.The investigators will also collect blood, nose swab, saliva, stool, semen, and breastmilk to test for the virus. The investigators will ask participants to complete a surveyand give specimens up to 12 times over 24 months. This information will be used to studyhow long the virus can live in different parts of the body, antibody development, andpost-infectious complications. The investigators hope that this information will allowmedical and public health providers to make recommendations to better care for patientsin the convalescent phase of COVID-19 infection.

This study uses questionnaires to gain an understanding of how experiences during theCOVID-19 pandemic, regardless of COVID-19 status, may have impacted health-relatedquality of life (HRQOL) and other areas such as COVID-19-specific psychological distress,disruptions to health care, finances and social interactions in cancer patients. Thecoronavirus disease 2019 (COVID-19) is an infectious disease that is caused by the severeacute respiratory syndrome coronavirus 2 (SARS-CoV-2). The information learned from thisstudy will guide the development of psychosocial programs to improve patient care andoutcomes in cancer patients and survivors in the context of facing a global pandemic.

This is an open label, dose escalating safety study of the advanced therapyinvestigational medicinal product (ATIMP) KI-MSC-PL-205, where patients diagnosed withSARS-CoV-2-induced severe acute respiratory distress syndrome (ARDS), according to theBerlin Definition, and who are on respirator/ventilator (used synonymously in thisprotocol) support due to respiratory insufficiency with or without concomitantcirculatory problems, will be included and treated with a single dose of KI-MSC-PL-205.

The overall objective of the study is to evaluate the safety and efficacy of MSC therapycombined with best supportive care in hospitalized patients with COVID-19.

We aim to understand the mechanism of olfactory dysfunction in COVID-19.

The objective of our study is to evaluate safety, tolerability, and immunogenicity ofCOVID-19 preventive DNA vaccine in healthy volunteers.

This Phase 2 Randomized Placebo Controlled Trial will determine if administeringnebulized Dornase Alpha (rhDNase) to COVID-19 patients with respiratory failure is safeand will reduce 28-day mortality.

This is a randomised placebo controlled phase II trial to examine the efficacy ofantivirals to treat COVID-19 infection compared to placebo for virological cure andimproved clinical outcomes. Individuals will be randomised to the candidate antiviralwhich in the first instance is Favipiravir or matched placebo and randomisation will bestratified according to whether the participant requires hospitalisation or not. Thistreatment will be given in addition to the usual standard of care in the participatinghospital.

The purpose of this study is to assess the safety and tolerability of the investigationalproduct, SBI-101, in subjects with an infectious etiology of Acute Kidney Injury (AKI).SBI-101 is a biologic/device combination product designed to regulate inflammation andpromote repair of injured tissue using allogeneic human mesenchymal stromal cells.SBI-101 will be integrated into the renal replacement circuit and patients will betreated for up to 24 hours.

The aim is to describe the epidemiology and determine the independent risk factors formortality and acute organ injury in AKI and to assess the impact of different treatmentstrategies on survival. This will allow the development of prevention strategies anddesign of appropriately powered intervention studies.