Infection with severe acute respiratory syndrome coronavirus 2 (SARS–CoV–2) is a rapidly
spreading and devastating global pandemic. Many researchers are attempting to clarify the …

Background Tocilizumab, an inhibitor of the interleukin-6 receptor, may decrease the
inflammatory response and control the symptoms of severe coronavirus disease 2019 …

The COVID-19 pandemic proceeds in waves, with variable characteristics of the clinical
picture resulting from the evolution of the SARS-CoV-2 virus. This study aimed to compare …

INTROduCTION The use of antibiotics and possibility of microbiota disruption during the
coronavirus disease 2019 (COVID‑19) pandemic have raised questions about the incidence …

Pathogenesis SARS-CoV-2 spreads through respiratory droplet transmission as well as
contaminated objects or surfaces and enters host cells via the functional cell receptor ACE2 …

Air pollution can adversely affect the immune response and increase the severity of the viral
disease. The present study aimed to explore the relationship between symptomatology …

The first Polish recommendations regarding the management of patients with COVID-19
were published by the Polish Society of Epidemiologists and Infectiologists (PTEiLChZ) on …

Long-term analyses of demographical and clinical characteristics of COVID-19 patients can
provide a better overview of the clinical course of the disease. They can also help …

Background: The coronavirus disease 19 (COVID-19) recently became one of the leading
causes of death worldwide, similar to cardiovascular disease (CVD). Coexisting CVD may …

Introduction Various diagnostic tools are used to assess the severity of COVID-19 symptoms
and the risk of mortality, including laboratory tests and scoring indices such as the Modified …