Coronavirus disease 2019 (COVID-19) is caused by SARS-CoV-2. During T-cell activation,
the immune system uses different checkpoint pathways to maintain co-inhibitory and co …

Following the global spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-
2) infection, the importance of investigation of the pathogenesis and immunological …

Helminths are metazoan parasites affecting about one third of the worldwide population.
Chronic helminth infections (CHIs) confer immunological tolerance to harmless and self …

In the beginning of the third year of the fight against COVID-19, the virus remains at least still
one step ahead in the pandemic “war”. The key reasons are evolving lineages and …

The novel coronavirus, known as 2019-nCoV or severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2), has caused an epidemic with high mortality and morbidity …

The COVID-19 pandemic has become a global health crisis, inflicting substantial morbidity
and mortality worldwide. A diverse range of symptoms, including fever, cough, dyspnea, and …

Abstract Coronavirus disease 2019 (COVID-19) is a highly contagious disease caused by a
newly identified coronavirus called the severe acute respiratory syndrome-coronavirus 2 …

The administration of vaccination doses to the global population has led to a decrease in the
incidence of COVID-19. However, the clinical picture developed by infected individuals …

The coronavirus disease 2019 (COVID-19) pandemic has affected almost all countries and
territories. As of December 6, 2020, the United States of America and India have the highest …

By driving the ongoing pandemic of coronavirus disease 2019 (COVID-19), coronaviruses
have become a significant change in twenty-first-century medicine, healthcare systems …