Look At The Actual Covid-19 Epidemic Curve (Epi Curve) To See Its Rapid Decline

By: Richard J. Wright | Gulag Bound

VirtualWright COVID-19

Today (April 16) President Trump and the “experts” outlined their plan to reopen the economy. Fundamental to this is seeing two weeks of a sustained decline in COVID-19 cases. So, which graph are they going to use? The graph of cases by report date like this one (the typical one you see, in this instance, for the nearer suburbs of Chicago) — where you don’t see a two-week decline?

Or, the epi curve, i.e., the graph which shows the date of onset of symptoms, which is what actually shows the progress of the outbreak (and the one that’s really hard to find for most states and localities)? It looks like this one, which shows a sustained decrease for an entire month:

Both show the same underlying data, but the first one is basically useless because:

  1. people aren’t getting tested until they’re sick enough to go to a hospital, which is usually 1-2 weeks after onset of symptoms and,
  2. there have often been long delays in getting the results of the test, as much as a week or more.

Presumably, the testing result delays will be coming down more and more, with the backlog going away and the new, fast tests used, but we still need to base decisions about reopening the country based on the epi curve. But that doesn’t look scary enough — we need graphs with big, scary-looking, red blobs!

Here’s the latest from Chicago but it’s by reporting date. They don’t show you the epi curve anywhere that I can find:

It looks just like the same graph from suburban Cook County and so there’s every reason to believe that the epi curve would look just as good if they would show it to us!

This thing is already basically over. It’s time to reopen Illinois! The rest of the country needs to use the right data, too.


Richard J. Wright, a chemist and information technology specialist, has been tracking the official Covid-19 (Corona-SARS) data and assessing our government’s disease progression modeling, plus responses, at virtualwright.com.

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1 thought on “Look At The Actual Covid-19 Epidemic Curve (Epi Curve) To See Its Rapid Decline

  1. As soon as President Trump was elected, the DEMONocrats shut down. Don’t you remember their chant, RESIST? And since they haven’t done anything productive for our country (illegals don’t count), this virus shut down is right down their modus operandi. The Lie-beral DEMONocrats WANT our country to go belly-up. They are counterfeit Americans and their citizenship should be revoked. Some people are saying that we should hold China accountable because of the virus. THAT IS REALLY FUNNY BECAUSE WE CAN’T EVEN HOLD OUR DEMONOCRATS ACCOUNTABLE! They are truly untouchable…if you don’t believe me, ask Barr.

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