Background SARS-CoV-2 infection causes acute respiratory distress, which may progress to
multiorgan failure and death. Severe COVID-19 disease is accompanied by reduced …

T lymphocytes play a primary role in the adaptive antiviral immunity. Both lymphocytosis and
lymphopenia were found to be associated with severe acute respiratory syndrome …

Introduction A group of SARS-CoV-2 infected individuals present lingering symptoms,
defined as long COVID (LC), that may last months or years post the onset of acute disease …

A substantial number of patients recovering from acute SARS-CoV-2 infection present
serious lingering symptoms, often referred to as long COVID (LC). However, a subset of …

Natural killer (NK) cells are a potent innate source of cytokines and cytoplasmic granules.
Their effector functions are tightly synchronized by the balance between the stimulatory and …

Understanding the function of SARS-CoV-2 Ag-specific T cells is crucial for the monitoring of
antiviral immunity and vaccine design. Currently, both impaired and robust T cell immunity is …

Complex regulation of the immune response is necessary to support effective defense of an
organism against hostile invaders and to maintain tolerance to harmless microorganisms …

Simple Summary Recently, several studies have shown that acidosis, which is increased
acidity in the blood and other body tissues, is often associated with severe COVID-19. In this …

There is an urgent need to better understand the impact of different severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) variants on immune response and disease …

Knowledge of the mechanisms underpinning the development of protective immunity
conferred by mRNA vaccines is fragmentary. Here, we investigated responses to …