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Blue_true

(31,261 posts)
20. The Pfizer study is attempting to answer that question.
Thu Apr 1, 2021, 10:42 PM
Apr 2021

We don’t know how many variants of Covid that study participants have been exposed to, but previous studies have shown the vaccine to be effective against several variants, somewhat less effective against others. So, a reasonable assumption would be that immunity duration follows effectiveness against variants (a person that have long term immunity to one has it for others).

A one year interval for a shot is the easiest interval to execute. Longer or less than a year becomes difficult to manage (people will lose track of whether they have the vaccine easier).

Length of vaccine efficacy [View all] cilla4progress Apr 2021 OP
I think Pfizer said nykym Apr 2021 #1
Damn. I actually thought it was for life. Lol jimfields33 Apr 2021 #3
The study is ongoing. So far, a group of the people they tested Blue_true Apr 2021 #12
I kinda agree, but.... jimfields33 Apr 2021 #15
Science is about learning and adjusting to new data. Blue_true Apr 2021 #17
It's a different quesiton, though. Ms. Toad Apr 2021 #19
The Pfizer study is attempting to answer that question. Blue_true Apr 2021 #20
Not really - Ms. Toad Apr 2021 #21
A 10 year immunity to Covid only can be shown by the study that Pfizer is doing. Blue_true Apr 2021 #22
You're still missing the point. Ms. Toad Apr 2021 #23
Pfizer recently said that it was good for at least six months. IggleDuer Apr 2021 #8
I don't think they really know yet. Ocelot II Apr 2021 #2
See this announcement... MANative Apr 2021 #4
Your last sentence is my guess also. nt Blue_true Apr 2021 #13
Longer than 6 months so far apparently Meowmee Apr 2021 #5
I noticed immediately that the Covid vaccination card has many spaces at the ready than just the 2! consider_this Apr 2021 #6
At least 3 months, possibly 8 months or more dalton99a Apr 2021 #7
Yikes! cilla4progress Apr 2021 #9
I just read about the Pfizer study indicating very good immunity after 6 months groundloop Apr 2021 #10
Pfizer released data showing 6 months, so far. Blue_true Apr 2021 #11
No one really knows at this point.... OhioChick Apr 2021 #14
Time will tell... Cal Carpenter Apr 2021 #16
One thing I've been wondering, area51 Apr 2021 #18
god i'm starting to get depressed that cilla4progress Apr 2021 #24
I get a new jab every year for the flu virus, which mutates rapidly.... Hekate Apr 2021 #25
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