Respiratory viruses are known for their ability to enter the body through the eyes, nose, or mouth. Our bodies know that, too. The nasal cavity is well-equipped with sticky mucus that traps pathogens ...

Early on in the coronavirus disease 2019 (COVID-19) pandemic, the loss of smell was found to be a robust symptom consistently observed during the acute phase of infection. This effect was attributed ...

Respiratory viral diseases pose severe threats to animal health and global food security, especially in intensive pig farming systems. Viruses such as porcine reproductive and respiratory syndrome ...

As the SARS-CoV-2 viruses continue to evolve, mucosal immunity, particularly secretory immunoglobulin A (sIgA), has drawn increasing attention for its role in blocking viral entry at the respiratory ...