Post COVID-19 Chronic Parenchymal Lung Changes.

Introduction: Persistent parenchymal lung changes are an important long-term sequela of COVID-19. There are limited data on this COVID-19 infection sequela characteristics and trajectories. This study aims to evaluate persistent COVID-19-related parenchymal lung changes 10 weeks after acute viral pneumonia and to identify associated risk factors.

Negative Nasopharyngeal SARS-CoV-2 PCR Conversion in Response to Different Therapeutic Interventions.

Background The current management practices for patients with COVID-19 consist of infection prevention and supportive care. We aimed to explore the association between negative nasopharyngeal SARS-CoV-2 polymerase chain reaction (PCR) clearance and different therapeutic interventions. Methods This study is a retrospective cohort study of 93 patients who were admitted to a tertiary hospital in Saudi Arabia with a PCR confirmed diagnosis of COVID-19.