Nasal congestion happens when passages in the nasal cavity are blocked. 1 When nasal passages are blocked, nasal breathing can be more challenging, meaning it is harder to breathe through the nose ...

The toddler was triaged and given a nasal swab test to check for Covid-19 and influenza A and B. Wettstein said they sat down and waited to be called. And they waited. As Wettstein watched Ryan in ...

Researchers at Tel Aviv University have developed an effective, inexpensive, and simple COVID-19 vaccine that can be stored at room temperature and administered as a nasal spray Prof. Ronit Satchi ...