One Research developed by several researchers Research from different universities (University of California, Santa Barbara, Oregon State University, University of Manchester, and ETH Zurich) provided the first evidence that sunlight can be quickly inactivated coronavirus On the surface, this suggests that the persistence and subsequent exposure risk may change significantly in indoor and outdoor environments.
The report was published in Journal of Infectious DiseasesPoint out that laboratory experiments show that the speed of inactivating sunlight is eight times faster than previous ideas based on previous research.
“This theory predicts that the inactivation rate should be an order of magnitude slower. In the experiment, the virus in the saliva and the virus exposed to UV-B light are simulated. Become inactive more than eight times faster It’s bigger than theoretically expected,” said Paolo Luzzatto-Fegiz, professor of mechanical engineering and lead author at the University of California, Santa Barbara.
These data show that natural sunlight can be effective Disinfectant as a material There is no danger of being contaminated by viruses.
In July 2020, an experimental study has tested the effect of ultraviolet light on the coronavirus in simulated saliva. They recorded that the virus was inactivated when exposed to simulated sunlight. Between 10 and 20 minutes. Now, as everyone knows, sunlight works much faster.