As continuing research guides medical recommendations, it seems that there are COVID-19 updates released daily. These recommendations cover a range of topics, including whether COVID-19 booster vaccinations are necessary to whether COVID-19 vaccines can be mixed and matched.
“The fact that recommendations are changing is not evidence people don’t know what they’re doing,” says Dr. Gregory Poland, head of Mayo Clinic's Vaccine Research Group. “It’s evidence that they do know what they’re doing and are paying close attention to new data that’s coming along. Then they’re adjusting recommendations based on the latest data.”
Dr. Poland continues to urge people to get the latest COVID-19 news from credible sources.
In this Mayo Clinic Q&A podcast, Dr. Poland walks through the recent recommendations, corrects misperceptions and answers a number of listener questions.
Guest: Gregory A. Poland, MD
Host: Halena M. Gazelka, MD
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Past Notes
Coming up on Mayo Clinic Q&A,
there's a lot changing
the fact that recommendations
are changing. I want to urge you is
not evidence
that people don't know what they're
doing.
It's evidence that they do
know what they're doing and they're
paying close attention
to new data that's coming
along and then adjusting
recommendations.
Based on that,
recommendations on COVID 19
booster shots and vaccinations
for children are expected to happen
this month based on data presented
to the FDA advisory panel last
week.
How will you know what's recommended
for you and your loved ones?
Think that there's there's going to
be a lot of information?
Social media is not always going
to get it right.
Please go to credible sources.
Welcome everyone to Mayo Clinic Q&A.
I'm Dr. Holly Gazelka.
We're recording this podcast on
Monday, October the 18th
Twenty Twenty One.
Last week, an FDA advisory
panel met to discuss and make
recommendations on booster shots
from Moderna and JNJ vaccines.
And here with us to discuss today is
Dr. Greg Poland.
Thanks for being here again today,
Greg.
Yes, of course.
Good morning and happy Monday.
Wonderful to have you here today.
We have some updates today
and then I would your mailbag
for you as well.
OK. Those are always good,
but tell us what's been happening
with all these meetings and advisory
panels. It's hard for us all to keep
up.
It was a really busy week,
a lot of hours spent
in committee meetings, so
there were two meetings all
day meetings this past week.
And basically what the committee
heard were the data supporting
the notion of a booster
dose for Moderna
and JNJ.
And then the second item was
about so-called mix and match
who should get what kind of vaccine?
Now the important part here, and I
want to go through this a bit slowly
so people don't get confused.
Previously, the
recommendation was made for
a third dose
of Pfizer vaccine
for people who were moderately
to severely immunocompromised.
So if you're moderately to
severely immunocompromised
in reality, your series
is three doses
for everybody else.
It's a series of two doses.
And, Booster,
if you fit into certain categories,
the other point is that very
likely the Maddern of Booster
will be half the
dose that you got in your primary
series.
So in other words, not 100
micrograms, but 50
micrograms, JNJ
and Pfizer will stay the same.
What happened this past week
is that the committee voted on
both questions unanimously
in favor of authorizing
a Maddern, a booster and a JNJ
booster.
Now here's what has to happen.
The FDA takes
that advisory committees
recommendation under advisement.
They will issue a recommendation
this week.
It will go now to the CDC
to what's called the ACIP
Advisory Committee on Immunization
Practices, and they will
actually implement
and approve that.
So what do I expect will
happen? I expect that we
will see that recommendation
voted favorably upon.
And it's pretty simple.
It's four things
if you are, I guess.
Five, If you are over the age of
sixty five, you should
be offered a booster.
If you are over the age of 18
and in a long term care
setting, you should be
offered a booster.
If you are greater than 18
years old and you have underlying
medical problems, that
puts you at risk
for severe COVID.
You should be offered the vaccine.
If you're over 18 and you
work in a high risk setting,
you may
be offered the booster.
And if you're over 18 and
living in a high risk
setting, for example,
a home prison, something
like that, then you also
may be offered that vaccine.
So really, at this point,
it's functionally
almost everybody over the
age of 18 who's
at elevated risk.
That includes Selena.
You and I being in
health care.
It's it's
first responders.
It's teachers.
Those are high risk settings, as
we know, as kids have gone back to
school.
Now what will happen toward the
end of this month will
be another committee meeting
about extending the Pfizer
vaccine down to age
five.
So a lot happening.
One of the big, big questions
that comes up is this mix and match.
And let me kind of summarize that
data.
I think this is my belief
we will move to the point where
Jay and Jay is the two dose series,
just like the RNA vaccines.
If you got the if you got the JNJ
vaccine and you get a JNJ
booster, your antibodies
go up about four fold.
If you got the JNJ
as your primary dose
and you get Pfizer,
your antibodies go up thirty
five fold.
If you got the JNJ as your
initial dose and got them Moderna
booster, your antibodies
go up 76
fold.
Now those are impressive numbers.
But even yeah, but even the
second JNJ
vaccine is tremendously
effective.
And one other point, just again
in transparency, none
of the studies that are being
brought forward to talk
about booster doses measured
T-cell immunity, which is a major
arm of immunity.
So we're kind of basing
all of this on antibody
level, which we believe is
likely to turn out to be a correlate
of protection.
There's one other point that
likely will not
occur to people immediately.
A very high risk group
and we've talked a bit about it in
the past are pregnant women.
So the recommendation for pregnant
women, even though
they are younger,
they don't have any perhaps
underlying medical conditions.
They're not in a high risk setting,
they're not living in a high risk
setting or in a high risk
workplace.
They do get a booster
because the risk when you're
pregnant is so high
about a 70 fold
increased risk of death
even for a healthy pregnant
woman.
So a pregnant woman who's
had two doses, let's say, of an
RNA vaccine
does get a booster
dose if it's been.
Six or more months?
A lot of information there
is, but it's a lot of information,
and I appreciate you mentioning the
pregnancy because have
multiple listener questions on
that very topic.
And speaking of listener questions,
Greg, I have a number of them for
you today.
So I think you answered
this question earlier.
But just to clarify for this
listener, this
listener wants to know about booster
shots. Are booster shots the exact
same vaccine as what
was given earlier?
So when you get a booster of Pfizer,
it's the same vaccine you received
earlier, whereas there's something
different about what is
being injected.
No, you're you're exactly
right, Helene. If you get a JNJ
booster, it is identical
to your first shot.
If you get a Pfizer booster,
it is identical to
the original Pfizer vaccine.
If you get them during a booster,
it is identical in composition,
but different in dose
instead of 100 micrograms.
You'll get half that, you'll get
50 micrograms.
And just to make it a little more
complicated when we
when we get to the point of
immunizing children five to
11, it will be
a third of the normal
Pfizer dose when we
get to six months, up to
four years.
It'll be a tenth of the normal
Pfizer dose.
So you know,
that'll have to be kept in mind and
people cognizant of that,
particularly the ones administering
vaccine. But the composition
of the vaccine is identical
across those doses, and that
really shouldn't be surprising.
We give a child a different dose
of medicine, for example,
than we do an
adult. So.
Right.
All right. Next question.
This individual states that they're
eighty four year old mother is frail
but not really immune compromised.
They've been trying to encourage her
to consider a booster.
She has heard from a friend that
the booster gave them COVID.
Is that possible?
Yeah, no, that's it.
That's impossible.
And just to correct two
misperceptions there,
even an otherwise
healthy, non frail
eighty four year old is
in essence, immunocompromised.
They have what we call immuno
senescence.
Their immune system has aged
to the point where they don't
have the same immune response
and are at increased risk.
And we use as a cutoff for that.
It saddens me to say since
I've now joined this club,
anybody over the age 65.
So, so in fact, she
absolutely should have a booster,
but it is impossible
to get COVID from
the vaccine.
All of the vaccines available
here in the US contain
one tiny
protein from the virus.
It is not a live virus.
It's sort of like taking
a pad and just taking
the little clicker ballpoint
part of it and saying that's the
vaccine.
It's not the pen you couldn't write
with it, just like you can't
get infected with
the virus or get COVID
from the vaccine.
Sometimes I wonder how these
things pop into your head ballpoint
pen in comparison
to Iraq.
It's a great analogy.
Thank you.
You know, you answered this a little
bit earlier as well, but this
individual is
thinking about receiving a booster
vaccination while pregnant.
She received the Moderna vaccine
and now is wondering if if
a booster is
recommended, should she
get the booster prior to her
delivery.
If it has been six
or more months since she
completed her primary
series, I don't think we can go over
this enough.
It's so important and
you're pregnant, even though you are
otherwise healthy.
I mean, I know pregnant women
are still running half marathons,
for example, in their prime.
They are healthy.
Because of being pregnant,
it increases their risk
for pulmonary infection
and complications such
as blood clotting.
And as we mentioned, the risk of
death that's seven times
higher.
A woman, her exact same
age and health, but who is
not pregnant.
So if it's been six or more months,
they do get a booster.
Now, if it's Moderna, they'll get
a booster. That's half the dose of
their primary series.
But really important that they get
that booster.
All right.
Our next listener says
they have kept their children home
from school so that they will not
develop COVID once they
are vaccinated.
Would it be safe to send them to
school for the rest of the school
year?
It's a good question, and
the way I want to answer it is this
way.
There's no such thing as safe.
I mean, fundamentally, I
think we have to acknowledge that
there's no such thing as safe.
What there is is safer
and being vaccinated is
safer than not
being vaccinated.
My personal opinion is the
best place for kids
is in school.
All the activities that are occur,
the learning, the group, learning
the socialization.
There's just there's just a lot
to that. That's important.
Whether they're in home, school or
public school or private school.
And so, yes, being immunized
offers them just
fantastic odds
of either not getting infected
or if they got infected, being
asymptomatic or
at worst, mild disease.
So very much so.
Worth immunization.
Now, I would have a discussion
with your health care provider
based on any medical conditions
that the child has and
any risks associated
with the vaccine.
As we have always talked about,
there are risks to the vaccines,
but they occur a handful
of times out of a million
versus the risks of disease.
And so you and your health care
provider can best make that
determination about
benefit and risk.
All right, this next question
is about vaccine dosing.
This individual has an 11 year old
daughter whose daughter
weighs an adult wait to about one
hundred and forty pounds.
She says that if the vaccine
is approved for under age 12,
she would get a smaller dose of the
vaccine as you discussed
it, if they were to wait three more
months until her birthday in
January.
She would get a larger dose
of the vaccine because she would be
12 years old.
Would you say that she should wait
and get the larger dose of the
vaccine or accept what could
be given now?
These are tough questions.
Yeah.
You know, again that balance of
risks and benefits
regardless of weight.
This recommendation is being made
by age, and so we're obligated
to follow the prophet provisions
of the EU way.
That's one point.
The second point is, and
I want to say this carefully.
More is not
necessarily better.
And what I mean by that is
if she were to get her dose,
whether her antibodies went
up 20 fold
or 40 fold,
I don't think matters.
The point is that she'll be
protected if.
And let me just make up the numbers.
If you're antibody level that you
need for protection is one hundred
and you get a booster and
it puts you up at a thousand.
Who cares if a larger booster
puts you up at twelve hundred?
You're so far above the level
of protection, assuming an
otherwise normal healthy child
that that I think to go against
the EU way and try to dose
somebody because you think
you know more would be better.
I really, I think that's
shaky scientific ground
and it's definitely shaky legal
ground.
And then I think of the months of
being inside.
If this individual is attending
school in the winter time
and those extra months of being
vaccinated are probably quite
important.
Oh yes. And you know, I think
the parent that wrote in
is thinking wisely
as as our listeners always
have here in asking
about that and asking questions
and being skeptical and looking
for answers, I think that's that's
great.
I am concerned that
as we see around the
US, numbers are dropping
now along the north.
They're not dropping, they're
rising.
When you look at North Dakota,
Montana, Idaho, Alaska,
Minnesota is up 12
percent.
And we're going to see that we've
seen this before.
We had really large high
numbers that started dropping
in late summer, only
to see the numbers pick back
up as people go indoors
and there's cooler, wetter weather
and the virus survives better.
So now, I think, is actually
a very opportune time
to get those boosters and try
to prevent that happening,
particularly with the
holidays coming.
Mm-Hmm.
That's a very good point.
Well, Greg, you gave us a lot of
information today.
I have reached the end of the
mailbag. Do you have anything else
you'd like to share with us today?
You know, I think that there's
there's going to be a lot of
information.
Social media is not always going
to get it right.
Please go to credible sources.
There's a lot changing.
The fact that recommendations
are changing, I want to urge you
is not evidence
that people don't know what they're
doing.
It's evidence that they do
know what they're doing and they're
paying close attention
to new data that's coming
along and then adjusting
recommendations based on
that. For example, we
heard just superb
presentations.
Israel is ahead of us in terms
of the use of boosters,
despite the fact that they had such
high levels of immunization.
They were seeing breakthrough cases.
We discussed before why
that is.
They embarked on their booster
program and reduced
cases by over 90
percent.
How that's the power
of these boosters over time.
Of course, when the two dose
recommendation was made,
we didn't have years of experience
with this virus to say, Oh,
well, everybody needs a booster
at six months.
We're just learning that now
as we get to this six, seven
and eight month since people
have been immunized.
So I do urge people
to take these recommendations for
boosters very seriously.
Thank you very much, Greg, for being
here again today.
My my pleasure, Helene.
Always good to work with you.
Always good to see you.
Our thanks to Dr. Greg Poland,
virologist, vaccine expert
and infectious disease expert at the
Mayo Clinic for being here today to
share our COVID updates.
I hope that you'll learn something.
I know that I did.
We wish each of you a wonderful day.
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