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@@ -812,6 +812,11 @@ than it used to be.\]
## My own explanatory threads on Twitter ##
+* [A note concerning herd immunity (unconditional versus conditional
+ on other
+ measures)](https://threadreaderapp.com/thread/1324405641268645888.html)
+ (2020-11-05).
+
* [A caution regarding how effective reproduction numbers are
computed](https://threadreaderapp.com/thread/1320327001258008578.html)
(2020-10-25).