Case Update: May 2nd, Video: Simulating an Epidemic

The number of news cases has been erratic in the last week, but at least in the US, it continues to trend downward. I’ve started collecting the number of new cases in the US and California, and while I’m not sure how to integrate that data into my Excel spreadsheet yet, I can tell you that more tests definitely mean more new confirmed cases. So some of the erratic graphs were seen are definitely because of more testing. In the long run, I expect to see new cases come down drastically as we continue to increase testing. is showing that 45 of 50 states have an Rt value below 1 yesterday. This is great news, as it shows that in most states, the virus is slowly disappearing. I’m watching with great interest to see how the states that have started re-opening do. Keep up the great work! We are having an impact!

Also included is a very interesting video I ran across, Simulating an Epidemic, showing a non-scientific computer model of possible epidemic outcomes given different approaches. Keep in mind, this model is NOT attempting to show what will happen in the COVID epidemic, just some theoretical things that might happen given different approaches. He does NOT attempt to prove that any of these things are what’s happening.

The most interesting parts for me were when he compared 2 methods that have been used in different places. At 6:00 minutes, he talks about the Detect and Isolate method, which I favor. This is were you find an infected person and quickly quarantine them until they have recovered. He argues that this is the most effective method in an epidemic like the current one. We haven’t been able to do this, really, because of our lack of testing in the beginning. My fervent hope is that if we get a second wave in the Fall or Winter, we will be ready for this approach.

At 16:50, he talks about a method that I think we are kind of using, the shelter in place, but with trips to central locations. He says that without other measures, these locations become a source of new infections. This is probably not happening as badly in real life because so many are wearing masks to the store!

Don’t fear, but be smart!


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