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 …

Background Human microbiotas are communities of microorganisms living in symbiosis with
humans. They play an important role in the host immune response to respiratory viral …

COVID-19 is an acute respiratory infection accompanied by pneumonia caused by severe
acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which has affected millions of …

The nasopharynx is the primary site of colonization by respiratory pathogen that constitutes
the port of entrance in the respiratory tract. The role of mucosal respiratory microbiota in …

Background Previous studies suggest that the nose/throat microbiome may play an
important role in shaping host immunity and modifying the risk of respiratory infection. Our …

Infection with influenza can be aggravated by bacterial co-infections, which often results in
disease exacerbation. The effects of influenza infection on the upper respiratory tract (URT) …

Multiple epidemiological studies identify Dolosigranulum pigrum as a candidate beneficial
bacterium based on its positive association with health, including negative associations with …

Children are less susceptible to coronavirus disease 2019 (COVID-19), and they have
manifested lower morbidity and mortality after infection, for which a multitude of mechanisms …

SARS-CoV-2 is the virus causing the major pandemic facing the world today. Although,
SARS-CoV-2 primarily causes lung infection, a variety of symptoms have proven a systemic …

Introduction: The burden of respiratory viral infections is a global public health concern with
significant mortality, morbidity, and economic impact. While Koch's postulate led to …