Issues connected with data quality include both data fragmentation and elementary formatting consistency deficiencies. These, coupled with patchy or non-existent oversight to identify, review, and resolve issues, result in ongoing and fundamental data challenges that have not been resolved despite being a near-perpetual problem since the inception of surveillance as
XLoD Surveillance Benchmark Report: Same pain, different day
A key takeaway is that data challenges persist, despite being continually flagged for years.