HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Main » Video & Multimedia (Forum) » Why you can't compare Cov...

Thu Apr 8, 2021, 05:20 PM

Why you can't compare Covid-19 vaccines



What a vaccine's "efficacy rate" actually means.

In the US, the first two available Covid-19 vaccines were the ones from Pfizer/BioNTech and Moderna. Both vaccines have very high "efficacy rates," of around 95%. But the third vaccine introduced in the US, from Johnson & Johnson, has a considerably lower efficacy rate: just 66%.

Look at those numbers next to each other, and it's natural to conclude that one of them is considerably worse. Why settle for 66% when you can have 95%? But that isn't the right way to understand a vaccine's efficacy rate, or even to understand what a vaccine does. And public health experts say that if you really want to know which vaccine is the best one, efficacy isn't actually the most important number at all.

9 replies, 1172 views

Reply to this thread

Back to top Alert abuse

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread
Arrow 9 replies Author Time Post
Reply Why you can't compare Covid-19 vaccines (Original post)
NurseJackie Apr 8 OP
Ocelot II Apr 8 #1
plcdude Apr 8 #2
BarbD Apr 8 #3
jimfields33 Apr 8 #4
Hekate Apr 8 #5
Kali Apr 9 #6
Rhiannon12866 Apr 9 #7
smirkymonkey Apr 13 #8
magicguido Apr 13 #9

Response to NurseJackie (Original post)

Thu Apr 8, 2021, 05:30 PM

1. Very interesting, thanks for posting.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to NurseJackie (Original post)

Thu Apr 8, 2021, 05:44 PM

2. Very helpful

Thank you

Reply to this post

Back to top Alert abuse Link here Permalink


Response to NurseJackie (Original post)

Thu Apr 8, 2021, 06:01 PM

3. Excellent information. Knowledge is power.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to NurseJackie (Original post)

Thu Apr 8, 2021, 06:01 PM

4. Very informative.

Glad I got Pfizer but if they gave me any other, Id feel better watching this video.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to NurseJackie (Original post)

Thu Apr 8, 2021, 07:46 PM

5. KnR

Reply to this post

Back to top Alert abuse Link here Permalink


Response to NurseJackie (Original post)

Fri Apr 9, 2021, 01:38 AM

6. that was a good video

Reply to this post

Back to top Alert abuse Link here Permalink


Response to NurseJackie (Original post)

Fri Apr 9, 2021, 05:45 AM

7. Thanks! This was very informative!

I know people who have gotten whatever they could and of course everyone's anxious about it. I got the Moderna, the first one I had the opportunity to get (like Dr. Fauci said), and felt pretty good about it when I learned that this was the one that Dr. Fauci got, too!

Reply to this post

Back to top Alert abuse Link here Permalink


Response to NurseJackie (Original post)

Tue Apr 13, 2021, 03:27 AM

8. Thank you for this!

Very helpful!

Reply to this post

Back to top Alert abuse Link here Permalink


Response to NurseJackie (Original post)

Tue Apr 13, 2021, 10:44 AM

9. they just paused J&J in Md out of caution; because of 6 incidents of blood clots

Reply to this post

Back to top Alert abuse Link here Permalink

Reply to this thread