From b454c98f298bd169987516090677267114a45404 Mon Sep 17 00:00:00 2001
From: "David A. Madore" <david+git@madore.org>
Date: Thu, 5 Nov 2020 21:02:56 +0100
Subject: Link to a new thread of mine on herd immunity.

---
 covid19-links.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/covid19-links.md b/covid19-links.md
index 638c934..8c76027 100644
--- a/covid19-links.md
+++ b/covid19-links.md
@@ -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).
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