How does the immune system fight pathogens? The immune system has two distinct components: mucosal and circulatory. The mucosal immune system provides protection at the mucosal surfaces of the body.

As over a dozen vaccines are being rolled out worldwide, to protect against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and many more are still being developed, it is necessary ...

Researchers in the United States have conducted a study suggesting that the host response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) within nasal mucosa is a key determinant of ...

Respiratory viruses that have diverse strains and mutate rapidly, such as influenza and COVID-19, are difficult to block ...

There has been a great deal of buzz around nasal vaccines over the past two years. The idea is simple enough: stop infection at the source. Since SARS-CoV-2 enters through the nasal passages and lungs ...

With four new vaccines provisionally approved for nasal delivery in China (inhaled), India, Iran, and Russia, and over 100 mucosal vaccines in development globally, many are pinning their hopes on ...

E-cigarette users and smokers had significantly higher amounts of Staphylococcus aureus in their respiratory microbiome than nonsmokers, and microbial diversity differed by sex, according to a new ...

Polyrizon Ltd. ( ($PLRZ) ) has issued an update. On December 19, 2025, Polyrizon Ltd. announced it has submitted a Pre-Request for Designation to ...

An over-the-counter nasal spray which has been used for years as a safe and effective treatment for seasonal allergies could potentially prevent Covid infections, according to clinical trial results ...

Respiratory viruses that have diverse strains and mutate rapidly, such as influenza and COVID-19, are difficult to block ...