Health
A nasal spray prevented Covid-19 infection in ferrets, a study finds. – Up News Info
A nasal spray that blocks the absorption of the coronavirus completely protected ferrets it was tested on, according to a small study released Thursday by an international…
The spray, which attacks the virus directly, contains a lipopeptide, a cholesterol particle linked to a chain of amino acids, the building blocks of proteins. This particular lipopeptide exactly matches a stretch of amino acids in the spike protein of the virus, which the pathogen uses to attach to a human airway or lung cell.
Before a virus can inject its RNA into a cell, the spike must effectively unzip, exposing two chains of amino acids, in order to fuse to the cell wall. As the spike zips back…
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