Strengthening outpatient low respiratory tract infection surveillance to document theburden of Respiratory Syncytial Virus (RSV)

The proposed study will investigate respiratory aerosols in SARS-CoV-2 (Severe AcuteRespiratory Syndrome Corona Virus 2) positive and negative children and adults with theResp-Aer-Meter (Palas GmbH). For this purpose, first, the measurement of respiratoryaerosols (particle sizes and concentration) with the Resp-Aer-Meter will be established.Thereafter, a comparison between polymerase chain reaction (PCR) SARS-CoV-2 positive andnegative participants (children and adults) will be conducted. In addition to themeasurement of aerosols, the clinical symptoms, lung function (FEV1) and laboratoryinflammatory markers will be analyzed.

Pregnant women are a vulnerable and high-risk population, as COVID-19 is associated withan increased risk preterm birth, cesarean section, and maternal critical care. This studywill examine the factors that impede testing for SARS-CoV-2 (the causative virus amongpregnant women), help determine optimal testing strategies by evaluating the necessity oftesting for asymptomatic disease in pregnancy, inform prenatal care plans by assessingthe full impact of infection, and contribute to a provider's ability to counsel women andcreate prenatal care plans if they are pregnant or considering pregnancy.

At present, the offer of tests for the serological diagnosis of CoVID-19 (detection ofIgG, IgM or IgA antibodies against CoV-2 SARS) is plethoric and is based on the use of avery large number of rapid diagnostic unit tests, a few dedicated high throughputautomated systems or reagents on existing open systems. The offer will continue to expandin the coming months.In order to meet the objectives mentioned by the Prime Minister, and confirmed in the HASreport of April 16, 2020 and in the opinion n°6 of the COVID-19 scientific councilconcerning the potential use of these serological tests at the end of the COVID-19epidemic, the Virology laboratory wishes to validate the sensitivity and specificity ofthe tests it intends to use.

This is a longitudinal study of the long-term impact of COVID-19 on the lungs.Participants will be followed over a period of up to 4 years and impacts of COVID-19 onthe lungs will be measured with magnetic resonance imaging (MRI) using hyperpolarizedxenon-129, pulmonary function tests, exercise capacity, computed tomography imaging andquestionnaires.

Detection of the incidence and types of arrhythmia and conduction block in COVID - 19patients Detection and description of CMR patterns of myocardial injury in COVID-19patients with arrhythmias.

Since the beginning of the year, the entire world has been concerned with the novelSARS-CoV2 virus. After the first case descriptions in Wuhan, there has been a rapidincrease in the number of cases in Germany as well. In case of an illness with the virus,the affected patients can suffer from a slight infection of the upper respiratory tractup to severe lung failure and death. Interestingly, up to now, children are usually lessseverely affected than adults. However, the actual infection rates are probably similarto those of adults, even if the actual prevalence in children is difficult to quantify sofar. The extent of the disease in children has also been less researched to date than inadults, and the same applies to pregnant women and their newborns. In addition, intensiveresearch into possible therapeutic strategies and new vaccines is necessary. Here,however, the number of clinical studies in children is also far behind. In order to beable to understand the infection process and to protect the population with theirchildren, comprehensive testing is necessary. However, this poses great challenges forlocal health authorities. Scientific investigations are also costly, but are alreadybeing carried out by many institutes. So far, for example in the SeBlueCo study, a verylow prevalence of antibodies (1.3% of people) has been show. In children, however, boththe routes of infection and the way the immune system deals with the virus are probablydifferent than in adults. In this study the investigators now want to examine residualblood samples from pediatric patients of the pediatric and adolescent clinic in the timecourse after the beginning of the pandemic in order to better understand and monitor thedevelopment of antibody prevalence.

The COVID-19 (coronavirus) pandemic has had a huge impact on healthcare resources andstaff in the UK. Understanding the key risk factors associated with infection amongsthealthcare workers is essential for future pandemic response plans.Currently there are scarce data relating to the infection rates and associated factorsamongst healthcare workers in the United Kingdom (UK). Studies of infection rates inhealthcare workers have largely relied on the real-time reverse transcriptase-polymerasechain reaction (RT-PCR) test to date and it appears that Healthcare workers are twice aslikely to succumb to Coronavirus infection, when compared to the general population andthose from Black and minority ethnic (BAME) backgrounds appear to be particularly atrisk.Currently there is no evidence that the presence of SARS-CoV-2 (severe acute respiratorysyndrome coronavirus 2) antibodies provides seasonal or long term immunity to futureinfection.Therefore, this study aims to understand the current level of SARS-CoV-2 antibodypositivity and try to determine the likely risk to healthcare workers in the UK toCOVID-19 infection. This study hopes to find out whether certain individualcharacteristics will have an impact on likelihood of infection susceptibility andantibody response and determine the impact of the presence of antibodies on thelikelihood of future clinical infection over a 12 month period.The study involves an initial online survey and linkage to the recent antibody test, thena further online survey in 6 and 12 months' time. The data obtained will be linked todata that the Human Resources Department (HR) holds.Participants also have the option to partake in another antibody test at 6 and 12 months'time and linked to the data collected.

People living with HIV could have different susceptibility and outcome to the SARS CoV-2infection. The risk of SARS CoV-2 infection in this population could be no related to HIVinfection, immunodepression or antiretroviral therapy, but to the differentsusceptibility as measured by ACE2 or CD26 receptors. Also, patients with HIV-1 infectioncould have different cytokine profile and cellular immune response after SARS-CoV-2infection, leading to a differential outcome,

The purpose of the study is to Assess of Long-term impact post COVID for patients andhealth care professionals.The patients and medical staff will be followed for 2 years inorder to provide clinical and paraclinical data not yet published in the literature.