Add Yahoo as a preferred source to see more of our stories on Google. An over-the-counter nasal spray which has been used for years as a safe and effective treatment for seasonal allergies could ...

A new way to deliver protective antibodies against COVID-19 was tested in a Phase I clinical trial. Instead of injecting pre-made antibodies into patients, this approach encouraged the body to produce ...

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 ...