Dude, really? This is from April... I had all but forgotten about it because Trump has said a hundred or so dumb things since then.
But let's take a closer look just for fun.
First of all, the abstract for the poster presentation (yes, its a poster) that you linked is titled this:
Internally Applied Ultraviolet Light as A Novel Approach for Effective and Safe Anti-Microbial TreatmentThe coronavirus is a
virus, not a
bacteria. There's actually zero research that shows ultraviolet light treatment is good for treating viruses in humans, or other living animals.
I looked into it a bit and it gets way weirder. The authors of the poster work for Atyu Bioscience, which came up with "
Healight Platform Technology" -- a light stick that you shove down your trachea to kill the virus.
https://www.politico.com/news/2020/04/26/trump-coronavirus-conservatives-209325Adams and several other right-wing personalities floated the possibility that Trump had read a news release from Aytu Bioscience, a publicly traded biotech company based out of Colorado, announcing a partnership with Cedars-Sinai, a top medical research center, to work on a therapy that involved treating coronavirus patients via injecting UV-A rays, a subspectrum of ultraviolet light, into the lungs via a catheter tube.
The news release was packed with extensive legal disclaimers cautioning that any forward-looking statements indicating excitement were “just predictions and are subject to risks and uncertainties that could cause the actual events or results to differ materially.”
In a statement, a spokesperson for Cedars-Sinai said the technology was in the preclinical phase: “The technology has not been tested or used on patients.”
So, no, its never been shown to be effective in treating viruses
in vivo - let alone coronavirus.
I mean, you can read through the
patent for the device if you want -- no mention of it being used to treat respiratory viruses at all. Just a quacky idea repurposed to cash in on the coronavirus craze. Here's what the CEO tweeted the day after Trump's words:
https://twitter.com/josh_disbrow/status/1253499856280326145Hmm....