Today Allegheny Co. is reporting 317 new coronavirus cases. The daily record for the county is 331 cases, which occurred on 7/14. The 331 number was due both to the summer surge and a significant reporting backlog that dated back to June 8.
However, today's count of 317 cases dates back to Oct. 30.

BIG DIFFERENCE.
Why is there always some lag in-between when a test sample is submitted and a positive case reported? It takes time for a test to be analyzed and for that result to be submitted to public health authorities.

A 10-lag is not at all ideal for contact tracing purposes.
This lag can skew our understanding of the data. Here's a chart from @HealthAllegheny which tracks positive tests from the date they're submitted.

Like the rest of the US, Allegheny Co. is in the midst of a surge that is showing no signs of slowing

https://www.alleghenycounty.us/Health-Department/resources/COVID-19/Covid-19.aspx
We've hit so many record-breaking days lately, yet the data is so messy. So IMO a "record-breaking" number is less important than the overall trend.

IE: Cases are rising fast. The holidays are coming & weather is getting cold, so growth will likely continue to accelerate.
I am very worried that we will hit a point--perhaps in Dec. or Jan.--where our health systems will be overwhelmed with COVID-19. This will affect anyone dealing with a health issue, not just those who have contracted the coronavirus.
You can follow @Sarah_Boden.
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