I check for new sites almost every day and there haven't been any recently. But when I look at just the ".us" sites it appears that these will probably never actually be used. Instead they are more likely hints to us about things UNVC will be doing.

telemedrx.us
medicallyhome.us
cannabispharm.us
wellnesswellbeing.us
facebookcare.us
caremedical.us
videohealth.us
covidrx.us