Interesting article about using UVC light to kill Wuhan-plague and the associated drawbacks.
https://www.powerelectronictips.com/killing-covid-19-with-uv-c-leds/
“Dallas, Texas – In response to the extension of the declaration of a Local State of Disaster and to reduce the spread of COVID-19, public access is closed indefinitely to all City of Dallas libraries, neighborhood cultural centers, recreation centers, athletic fields, golf courses, tennis centers and playgrounds.”
Source: City of Dallas email, press release just dropped.