Bacteria that colonize the human gastrointestinal tract are essential for good health. The gut
microbiota has a critical role in pulmonary immunity and host's defense against viral …

Influenza and other respiratory viral infections are the most common type of acute respiratory
infection. Viral infections predispose patients to secondary bacterial infections, which often …

Although microbial populations in the gut microbiome are associated with COVID-19
severity, a causal impact on patient health has not been established. Here we provide …

Background & Aims Although severe acute respiratory syndrome coronavirus 2 (SARS-CoV-
2) infects gastrointestinal tissues, little is known about the roles of gut commensal microbes …

Abstract Background Coronavirus disease 2019 (COVID-19) is an emerging serious global
health problem. Gastrointestinal symptoms are common in COVID-19 patients, and severe …

Individuals suffering from severe viral respiratory tract infections have recently emerged as
“at risk” groups for developing invasive fungal infections. Influenza virus is one of the most …

The clinical course and outcome of COVID-19 are highly variable, ranging from
asymptomatic infections to severe disease and death. Understanding the risk factors of …

Secondary bacterial infections often complicate viral respiratory infections. We hypothesize
that perturbation of the gut microbiota during influenza A virus (IAV) infection might favor …

The unprecedented increase of life expectancy challenges society to protect the elderly from
morbidity and mortality making vaccination a crucial mean to safeguard this population …

The lungs were long thought to be sterile until technical advances uncovered the presence
of the lung microbial community. The microbiome of healthy lungs is mainly derived from the …