According to a new study -
www.nbcnewyork.com
The catch is, it won’t work by smoking it. Still though, if the results are repeatable outside of a lab and its use for this kind of treatment gets authorized by our dear leaders, chalk this up as another win for cannabis.
*edit* There is however another angle to this story -
www.orlandosentinel.com
Which seems to tie into why it won’t work via smoking.

Cannabis Compounds May Prevent Coronavirus Infection, Study Finds
Some of the compounds in cannabis may prevent the entry of the coronavirus into healthy human cells, according to a study published in the Journal of Nature Products.

The catch is, it won’t work by smoking it. Still though, if the results are repeatable outside of a lab and its use for this kind of treatment gets authorized by our dear leaders, chalk this up as another win for cannabis.
*edit* There is however another angle to this story -
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Sorry, pot smokers: Research on cannabis to fight COVID studied hemp compounds, not THC
The researchers who found certain hemp compounds can fight COVID-19 infections don't mean to harsh your vibe, but they didn’t study THC, the psychoactive ingredient in marijuana.
Which seems to tie into why it won’t work via smoking.