The study hypothesis is that low-dose computed tomography (LDCT) coupled with artificialintelligence by deep learning would generate imaging biomarkers linked to the patient'sshort- and medium-term prognosis.The purpose of this study is to rapidly make available an early decision-making tool(from the first hospital consultation of the patient with symptoms related to SARS-CoV-2)based on the integration of several biomarkers (clinical, biological, imaging by thoracicscanner) allowing both personalized medicine and better anticipation of the patient'sevolution in terms of care organization.

Until now there is no vaccine or reliable treatment for the COVID-19 pandemic. Thefundamental mechanisms of non-invasive low-level laser in photobiomodulation (PBM) andphotodynamic therapy is to stimulate the mitochondrial respiratory chain where atransient release of non-cytotoxic levels of reactive oxygen species (ROS) will lead topositive modulation of the immune response. As previous studies mentioned that the mostimportant strategy for COVID-19 management is oxygenation and faster rehabilitation ofthe damaged tissue, antiviral effects, and, finally, reduction or controlling the cytokinestorm by reducing inflammatory agents. PBM may be used as adjuvant therapy or even analternative therapy in all these mechanisms without side effects and drug interactions.Objectives The objective of this clinical trial is to use the photobiomodulation therapy(PBMT), and photodynamic therapy as adjuvant therapy or even an alternative therapy forCovide-19.Patients and methods A randomized controlled study will be conducted on 60 patients ofpositive COVID 19. The patients will be divided into 3 equal groups. Group, I willreceive a low-level laser (diode laser 980nm) from laser watch for 30 minutes, 20 J for 3to 5 days, and laser acupuncture. Group 2 will be treated with photodynamic therapy byinjecting the methylene blue as a photosensitizer and irradiated with laser watch (diodelaser 670 nm). Group 3 will serve as a control. Evaluation methods will includelaboratory investigations and CT chest.

This is a multicenter prospective study that aims to investigate the clinical impact ofSARS-CoV-2 infection in pregnant women, pregnancy outcomes and perinatal transmission.

This is a pivotal phase III study to evaluate the efficacy of nitazoxanide 600 mg BIDcompared to placebo to treat hospitalized patients with non-critical COVID-19.

The aim of this preliminary study is to describe the potential decline in forcedexpiratory volume in 1 second (FEV1) or forced vital capacity (FVC) as measured by homespirometry in high-risk subjects infected with COVID-19. We hypothesize that themagnitude of such a decline in FEV1 and/or FVC may be associated with clinicaldeterioration and hospitalization. The study will ultimately inform a larger subsequentRCT that will evaluate the efficacy of home spirometry in the early detection (prerespiratory symptoms) of respiratory complications and therefore prompt early medicalattention which is a key for improving outcome.

This is an observational study. The aim is to describe the natural history and clinicalevolution over time of hospitalized patients affected by Severe Acute RespiratorySyndrome-Coronavirus-2 (SARS-COV-2) infection, including the genetic pathology of thedisease and improve therapeutic procedures.

Thymalfasin (thymosin alpha 1 or Ta1), the active pharmaceutical ingredient in ZADAXIN®injection, is a 28-amino acid synthetic peptide, identical to natural Ta1 produced by thethymus gland. Ta1 is a biological response modifier which activates various cells of theimmune system, and is therefore expected to have clinical benefits in disorders whereimmune responses are impaired or ineffective, including acute and chronic viral andbacterial infections, cancers, and vaccine non-responsiveness. Patients with end-stagerenal disease (ESRD) on hemodialysis, in addition to their intrinsic kidney disease andfrequent burden of comorbidities, also have increased risk of exposure to communicablediseases as they are treated several times each week at hemodialysis centers with severalother patients and clinic staff in attendance. The majority of patients are over 60 yearsof age and many are receiving immunosuppressive medications. Accordingly, ESRD patientsare particularly susceptible to COVID-19 infection. Ta1 has been shown to be safelyadministered to hemodialysis patients. It is our hypothesis that a course of Ta1administered to individuals with ESRD will reduce the rate and severity of infection withCOVID-19.

A pilot study to investigate the effects of the prone positioning (PP) on hospitalpatients diagnosed with COVID-19 pneumonia.Investigators that early self-proning may prevent intubation and improve mortality inpatients with Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-COV-2).Up to 100 participants with a primary diagnosis of confirmed COVID-19 pneumonia will beenrolled to the study.All participants will be screened and those that meet inclusion and exclusion criteriawill be enrolled to one of two groups: one with prone positioning (on the belly) and theother with standard supine positioning (on the back). The patient and nursing staff willmonitor times spent in various positions.Outcome measures include incidence of intubation, max oxygen requirements, length ofhospital stay, ventilator-free days, worsening of oxygenation saturation, and mortality.

In this study we cross-reference several nationwide high-quality Swedish registers inorder to study risk factors for severe Covid-19 outcomes.

One-in-four patients with COVID-19 pneumonia develop life-threatening heart problems.Through cardiovascular imaging and biomarkers analyses this study aims to evaluatewhether COVID-19 infection results in heart injury. The investigators will alsoinvestigate which patients are at risk of heart injury as a result of COVID-19 and whyonly some patients suffer heart problems as a consequence of the infection. The studywill also assess multisystem involvement including the lungs and kidneys.