In January 2022, the Omicron variant (B.1.1.529) of SARS-CoV-2 had been identified in all European Union/European Economic Area (EU/EEA) countries and was a globally dominant strain [ 1 ]. Although the Omicron variant and its subsequent subvariants …

Sarbecoviruses such as SARS and SARS-CoV-2 have been responsible for two major outbreaks in humans, the latter resulting in a global pandemic. While sarbecoviruses primarily cause an acute respiratory infection, they have been shown to infect the …

Diagnostic testing for infectious agents is essential to identify symptomatic or asymptomatic infected individuals and is therefore a pillar in the management of epidemics, as recently experienced in the coronavirus disease 2019 (COVID-19) …

Anti-synthetase syndrome (AS) is an autoimmune disorder characterized by the presence of autoantibodies against amino-acyl-transfer RNA synthase. Interstitial lung disease (ILD) is the leading cause of morbidity and mortality in patients with AS.

During the nascent phase of the Coronavirus disease 2019(COVID-19)pandemic, a majority of children infected with Severe Acute Respiratory Syndrome Coronavirus 2(SARS-CoV-2) exhibited fever and cough as the primary clinical features, with seizures …

The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection is the cause of coronavirus disease 2019 (COVID-19); a severe respiratory distress that has emerged from the city of Wuhan, Hubei province, China during December 2019.

The novel coronavirus disease of 2019 (COVID-19) first emerged in China in 2019 [ 1 , 2 ]. Since then, the disease has killed over 6.8 million people worldwide [ 3 ]. With time, it became apparent that COVID-19 could co-manifest with microbial …

Public health researchers need to recruit and successfully enroll participants in many epidemiological studies. Individuals make participation decisions which can be influenced by many factors including how they were contacted, the topic of study …

Shortly after the first publication on the new disease called Coronavirus Disease 2019 (Covid-19), studies on the causal consequences of this disease began to emerge, initially focusing only on transmission methods, and later on its consequences …

Long COVID is an emerging medical concern characterised by clinical symptoms that persist beyond 3 months from the onset of COVID-19 infection in which the symptoms last for at least 8 weeks [ 1 ]. These symptoms cannot be explained by any other …

Early in the coronavirus disease 2019 (COVID-19) pandemic (January–May 2020) it was observed that older adults were more vulnerable to infections with a higher incidence [ 1 ], more severe outcomes, and higher case fatality rates [ 2 ] than younger …

The T-cell receptor (TCR) repertoires exhibits distinct signatures associated with COVID-19 severity. However, the precise identification of vaccine-induced SARS-CoV-2-specific TCRs and T-cell immunity mechanisms are unknown. We developed a …