Background Growing evidence suggests that symptoms associated with post-COVID-19
condition (also known as long COVID) can affect multiple organs and systems in the human …

Considerable research has been done in investigating SARS‐CoV‐2 infection, its
characteristics, and host immune response. However, debate is still ongoing over the …

Objectives This study aimed to evaluate the associations between COVID-19 severity and
active viral load, and to characterize the dynamics of active SARS-CoV-2 clearance in a …

Background The persistence of severe acute respiratory syndrome-coronavirus 2 (SARS-
CoV-2) RNA in the body fluids of patients with the novel coronavirus disease 2019 (COVID …

Introduction Viral persistence is one of the main hypotheses explaining the presence of post-
COVID symptoms. This systematic review investigated the presence of SARS-CoV-2 RNA in …

Background To better understand severe acute respiratory syndrome coronavirus 2 (SARS-
CoV-2) shedding and infectivity, we estimated SARS-CoV-2 RNA shedding duration …

Background There is a paucity of knowledge on the long-term outcome in patients
diagnosed with COVID-19. We describe a cohort of patients with a constellation of symptoms …

Many studies have shown that re-positive tests for SARS-CoV-2 by RT-PCR in recovered
COVID-19 patients are very common. We aim to conduct this review to summarize the …

Background Current guidelines for returning health care workers (HCW) to service after a
positive SARS-CoV-2 RT-PCR test and ceasing of transmission precautions for patients is …

Postacute sequelae of coronavirus disease 2019 (PASC), more commonly known as long
Covid, manifests as ongoing symptoms in various organs of the body more than 4 weeks …