What do you know about 3 Fatal overdoses in Vermont?

3 fatal overdoses in Chittenden County in Vermont occurred in a 5 day span, prompting authorities to issue a warning to drug users to check what they are using before taking it.  There was nothing strange about the overdoses other than the time span and the increase in usage.

https://vtdigger.org/2019/07/26/three-fatal-overdoses-in-five-days-spark-concern-in-chittenden-county/