Journal of Medical Virology,
Journal Year:
2022,
Volume and Issue:
95(1)
Published: Nov. 23, 2022
Abstract
Numerous
studies
have
revealed
severe
damage
to
male
fertility
from
acute
respiratory
syndrome
coronavirus
2
(SARS‐CoV‐2)
infection,
raising
concerns
about
the
potential
adverse
impact
on
reproductive
function
of
disease
2019
(COVID‐19)
vaccine
developed
based
virus.
Interestingly,
there
are
several
researchers
who
studied
COVID‐19
mRNA
since
then
but
come
up
with
conflicting
results.
As
a
near‐ideal
candidate
for
mass
immunization
programs,
inactivated
SARS‐CoV‐2
has
been
widely
used
in
many
countries,
particularly
less
wealthy
nations.
However,
little
is
known
its
effect
fertility.
Here,
we
conducted
retrospective
cohort
study
at
single
large
center
medicine
China
between
December
2021
and
August
2022.
Five
hundred
nineteen
fertile
men
no
history
laboratory‐confirmed
were
included
categorized
into
four
groups
their
vaccination
status:
unvaccinated
group
(
n
=
168),
one‐dose
vaccinated
8),
fully
183),
booster
160).
All
them
underwent
semen
analysis
most
had
serum
sex
hormone
levels
tested.
There
significant
differences
all
parameters
either
group.
To
account
possible
vaccination‐to‐test
interval‐specific
changes,
sub‐analyses
performed
two
interval
groups:
≤90
>90
days.
expected,
remained
unchanged
control
groups.
participants
(≤90
days)
decreased
total
sperm
motility
increased
follicle‐stimulating
level
compared
ones
Moreover,
some
trends
similar
those
found
during
infection
recovery
observed
our
study.
Fortunately,
values
within
normal
range.
In
addition,
reported
few
reactions.
No
special
medical
intervention
was
required,
serious
reactions
happened.
Our
suggests
that
does
not
impair
fertility,
possibly
due
low
frequency
effects.
This
information
reassures
young
population
got
this
worldwide,
helps
guide
future
efforts.
American Journal of Epidemiology,
Journal Year:
2022,
Volume and Issue:
191(8), P. 1383 - 1395
Published: Jan. 14, 2022
Some
reproductive-aged
individuals
remain
unvaccinated
against
coronavirus
disease
2019
(COVID-19)
because
of
concerns
about
potential
adverse
effects
on
fertility.
Using
data
from
an
internet-based
preconception
cohort
study,
we
examined
the
associations
COVID-19
vaccination
and
severe
acute
respiratory
syndrome
2
(SARS-CoV-2)
infection
with
fertility
among
couples
trying
to
conceive
spontaneously.
We
enrolled
2,126
self-identified
female
participants
aged
21-45
year
residing
in
United
States
or
Canada
during
December
2020-September
2021
followed
them
through
November
2021.
Participants
completed
questionnaires
every
8
weeks
sociodemographics,
lifestyle,
medical
factors,
partner
information.
fit
proportional
probabilities
regression
models
estimate
between
self-reported
SARS-CoV-2
both
partners
fecundability
(i.e.,
per-cycle
probability
conception),
adjusting
for
confounders.
was
not
appreciably
associated
either
(female
ratio
(FR)
=
1.08,
95%
confidence
interval
(CI):
0.95,
1.23;
male
FR
CI:
0.83,
1.10).
Female
strongly
(FR
1.07,
0.87,
1.31).
Male
a
transient
reduction
(for
within
60
days,
0.82,
0.47,
1.45;
after
1.16,
0.92,
1.47).
These
findings
indicate
that
may
be
short-term
decline
does
impair
partner.
Human Reproduction,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 3, 2025
Abstract
STUDY
QUESTION
What
is
the
prevalence
and
trend
of
infertility
among
individuals
childbearing
age
at
global,
regional,
national
levels
by
sex
socio-demographic
index
(SDI)
across
21
regions
204
countries
territories?
SUMMARY
ANSWER
Our
findings
reveal
a
growing
aged
15–49
years
worldwide
from
1990
to
2021,
with
an
expected
continued
increase
through
2040.
WHAT
IS
KNOWN
ALREADY
Infertility
persistent
global
reproductive
health
issue,
leading
significant
societal
consequences.
No
study
has
specifically
described
current
infertility,
its
secular
trend,
or
variations
between
different
SDI
levels.
DESIGN,
SIZE,
DURATION
A
sex-
SDI-stratified
systematic
analysis
territories
2021
been
performed.
PARTICIPANTS/MATERIALS,
SETTING,
METHODS
We
retrieved
data
Global
Burden
Disease
Study
(GBD)
on
count
crude
rate
for
2021.
In
GBD
framework,
defined
as
absence
live
birth
in
couple
who
have
union
least
5
are
actively
trying
conceive,
since
their
last
birth,
no
use
contraceptives
during
this
period.
Estimated
annual
percent
change
was
calculated
quantify
temporal
age-standardized
rates
(ASPRs)
sex,
age,
SDI.
The
Bayesian
age-period-cohort
model
used
project
ASPRs
2022
MAIN
RESULTS
AND
ROLE
OF
CHANCE
estimated
55
000
818
men
110
089
459
women
were
living
worldwide,
corresponding
approximately
1820.6
cases
per
100
population
(1.8%)
males
3713.2
(3.7%)
females.
Regionally,
highest
observed
middle
regions,
such
East
South
Asia
Eastern
Europe.
primarily
affected
group
35–39
females
most
some
notable
exceptions.
Between
increased
average
0.49%
(95%
CI
0.34–0.63)
0.68%
(0.51–0.86)
Additionally,
fastest
female
occurred
high
while
rise
male
seen
low-middle
areas.
Furthermore,
ASPR
projected
more
rapidly
than
that
LIMITATIONS,
REASONS
FOR
CAUTION
primary
sources
burden
population-based
surveys;
however,
less-developed
often
lack
complete
statistics,
potential
reporting
bias
these
areas
due
sparsity
incompleteness.
could
not
separately
assess
trends
secondary
infertility.
does
provide
attributable
proportion
each
cause
infertility;
hence,
we
cannot
compare
contribution
causes
location.
WIDER
IMPLICATIONS
THE
FINDINGS
Sexual
crucial
individuals’
health,
economic
development,
overall
human
wellbeing.
It
essential
governments
public
recognize
severity
prioritize
implementation
targeted
interventions
enhance
health.
FUNDING/COMPETING
INTEREST(S)
This
supported
grants
Science
Technology
Project
Jiangmen
(2020030103110009027).
authors
declared
conflict
interest.
TRIAL
REGISTRATION
NUMBER
N/A.
Vaccines,
Journal Year:
2022,
Volume and Issue:
10(3), P. 366 - 366
Published: Feb. 26, 2022
Background:
The
unprecedented
global
spread
of
coronavirus
disease
2019
(COVID-19)
has
imposed
huge
challenges
on
the
healthcare
facilities,
and
impacted
every
aspect
life.
This
led
to
development
several
vaccines
against
COVID-19
within
one
year.
study
aimed
assess
attitudes
side
effects
among
Arab
communities
after
receiving
a
vaccine
use
machine
learning
(ML)
tools
predict
post-vaccination
based
predisposing
factors.
Methods:
An
online-based
multinational
survey
was
carried
out
via
social
media
platforms
from
14
June
31
August
2021,
targeting
individuals
who
received
at
least
dose
22
countries.
Descriptive
statistics,
correlation,
chi-square
tests
were
used
analyze
data.
Moreover,
extensive
ML
utilized
30
post
vaccination
adverse
their
severity
15
importance
distinct
factors
in
predicting
particular
determined
using
feature
employing
gradient
boost
as
AutoML.
Results:
A
total
10,064
participants
19
countries
included
this
study.
Around
56%
female
59%
aged
20
39
years
old.
high
rate
hesitancy
(51%)
reported
participants.
Almost
88%
vaccinated
with
three
vaccines,
including
Pfizer-BioNTech
(52.8%),
AstraZeneca
(20.7%),
Sinopharm
(14.2%).
About
72%
experienced
effects.
reports
statistically
significant
associations
(p
<
0.01)
between
various
post-vaccinations
In
terms
effects,
boost,
random
forest,
XGBoost
outperformed
other
methods.
most
important
for
certain
(i.e.,
tiredness,
fever,
headache,
injection
site
pain
swelling,
myalgia,
sleepiness
laziness)
revealed
be
number
doses,
gender,
type
vaccine,
age,
receive
vaccine.
Conclusions:
following
populations
are
usually
non-life-threatening;
flu-like
symptoms
pain.
Certain
have
greater
weight
input
data
Based
data,
can
also
these
effects;
people
predicted
may
require
additional
medical
attention,
or
possibly
hospitalization.
Obstetrics and Gynecology,
Journal Year:
2022,
Volume and Issue:
unknown
Published: Jan. 25, 2022
To
assess
whether
coronavirus
disease
2019
(COVID-19)
mRNA
vaccination
is
associated
with
controlled
ovarian
hyperstimulation
or
early
pregnancy
outcomes.This
retrospective
cohort
study
included
patients
who
underwent
single
euploid
frozen-thawed
embryo
transfer
at
a
academic
center.
Patients
fully
vaccinated
COVID-19
vaccine
were
compared
unvaccinated
cycled
during
the
same
time
period.
The
primary
outcome
was
fertilization
rate
for
and
clinical
transfer.
Secondary
outcomes
eggs
retrieved,
mature
oocytes
ratio,
blastulation
rate,
rate.
ongoing
biochemical
loss
rate.Among
222
983
cycles
between
February
September
2021,
there
no
association
on
adjusted
analysis
(β=0.02±0.02,
P=.20)
any
of
secondary
assessed:
retrieved
(β=0.01±0.57,
P=.99),
(β=0.26±0.47,
P=.58),
ratio
(β=0.02±0.01,
P=.12),
P=.27),
(β=0.05±0.03,
P=.08).
Among
214
733
undergoing
transfer,
demonstrated
significant
(adjusted
odds
[aOR]
0.79,
95%
CI
0.54-1.16)
outcomes:
(aOR
0.88,
0.58-1.33),
0.90,
0.61-1.31),
1.21,
0.69-2.14),
1.02,
0.51-2.06).Administration
vaccines
not
an
adverse
effect
stimulation
after
IVF.
Our
findings
contribute
to
growing
body
evidence
regarding
safety
in
women
are
trying
conceive.
Expert Review of Vaccines,
Journal Year:
2022,
Volume and Issue:
21(11), P. 1603 - 1620
Published: Aug. 18, 2022
Introduction
Several
vaccines
against
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
have
been
developed
since
the
inception
of
disease
2019
(COVID-19)
in
December
2019,
at
unprecedented
speed.
However,
these
rapidly
raised
many
questions
related
to
efficacy
and
safety
different
communities
across
globe.
Various
hypotheses
regarding
COVID-19
its
were
generated,
them
also
answered
with
scientific
evidence.
Still,
there
are
myths/misinformation
vaccines,
which
create
hesitancy
for
vaccination,
must
be
addressed
critically
achieve
success
battle
pandemic.Area
Covered
The
development
anti-SARS-CoV-2
COVID-19,
their
efficacy,
relating
presented.Expert
Opinion
In
this
pandemic,
we
seen
a
global
collaborative
effort
researchers,
governments,
industry,
supported
by
billions
dollars
funding,
allowed
far
more
quickly
than
past.
Vaccines
go
through
rigorous
testing,
analysis,
evaluations
clinical
settings
prior
approval,
even
if
they
approved
emergency
use.
Despite
myths,
vaccination
represents
an
important
strategy
get
back
normality.
Infection Genetics and Evolution,
Journal Year:
2022,
Volume and Issue:
99, P. 105254 - 105254
Published: Feb. 23, 2022
Severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2),
accountable
for
causing
the
diseases
2019
(COVID-19),
is
already
declared
as
a
pandemic
disease
globally.
Like
previously
reported
SARS-CoV
strain,
novel
SARS-CoV-2
also
initiates
viral
pathogenesis
via
docking
spike-protein
with
membranal
angiotensin-converting
enzyme
(ACE2)
-
receptor
on
variety
of
cells
in
human
body.
Therefore,
COVID-19
broadly
characterized
that
targets
multiple
organs,
particularly
complications
organ-specific
accompanied
by
destruction
ACE2
Vaccines,
Journal Year:
2023,
Volume and Issue:
11(2), P. 208 - 208
Published: Jan. 17, 2023
According
to
the
WHO,
as
of
January
2023,
more
than
850
million
cases
and
over
6.6
deaths
from
COVID-19
have
been
reported
worldwide.
Currently,
death
rate
has
reduced
due
decreased
pathogenicity
new
SARS-CoV-2
variants,
but
major
factor
in
rates
is
administration
12.8
billion
vaccine
doses
globally.
While
vaccines
are
saving
lives,
serious
side
effects
after
vaccinations
for
several
premature
non-communicable
diseases
(NCDs).
However,
adverse
events
low
number.
The
scientific
community
must
investigate
entire
spectrum
COVID-19-vaccine-induced
complications
so
that
necessary
safety
measures
can
be
taken,
current
re-engineered
avoid
or
minimize
their
effects.
We
describe
depth
severe
metabolic,
mental,
neurological
disorders;
cardiovascular,
renal,
autoimmune
diseases,
reproductive
health
issues
detected
whether
these
causal
incidental.
In
any
case,
it
become
clear
benefits
outweigh
risks
by
a
large
margin.
pre-existing
conditions
vaccinated
individuals
need
taken
into
account
prevention
treatment
events.
Human Reproduction Open,
Journal Year:
2024,
Volume and Issue:
2024(3)
Published: Jan. 1, 2024
Abstract
STUDY
QUESTION
What
are
the
factors
influencing
decline
in
birth
rates
observed
higher-income
countries
later
phase
of
COVID-19
pandemic?
SUMMARY
ANSWER
Our
results
suggest
that
economic
uncertainty,
non-pharmaceutical
policy
interventions,
and
first
wave
population-wide
vaccination
campaign
were
associated
with
during
2022.
WHAT
IS
KNOWN
ALREADY
During
pandemic,
most
briefly
declined
then
shortly
recovered,
showing
no
common
trends
afterwards
until
early
2022,
when
they
unexpectedly
dropped.
DESIGN,
SIZE,
DURATION
This
study
uses
data
on
monthly
total
fertility
(TFRs)
adjusted
for
seasonality
calendar
effects
provided
Human
Fertility
Database
(HFD).
Births
taking
place
between
November
2020
October
2022
correspond
to
conceptions
occurring
February
January
i.e.
after
onset
pandemic
but
prior
Russian
invasion
Ukraine.
The
cover
26
countries,
including
21
Europe,
USA,
Canada,
Israel,
Japan,
Republic
Korea.
PARTICIPANTS/MATERIALS,
SETTING,
METHODS
First,
we
a
descriptive
analysis
changes
TFR.
Second,
employed
linear
fixed
regression
models
estimate
association
explanatory
seasonally
TFRs.
considered
three
broader
sets
factors:
interventions
restricting
mobility
social
activities
outside
home,
progression
programmes.
MAIN
RESULTS
AND
THE
ROLE
OF
CHANCE
We
found
as
measured
by
increased
inflation
(P
<
0.001),
whereas
unemployment
did
not
show
any
link
births
=
0.677).
stringency
was
linked
postponement
births,
only
lower
institutional
trust
0.003).
In
higher
trust,
stricter
containment
measures
positively
rates,
both
year
0.019)
and,
albeit
weakly
significant,
0.057).
Furthermore,
negative
share
population
having
received
dose
TFRs
completed
primary
course
(usually
consisting
two
doses)
recovery
0.001).
LARGE
SCALE
DATA
N/A.
LIMITATIONS,
REASONS
FOR
CAUTION
research
is
restricted
relatively
strong
support
policies
government
well
wide
access
modern
contraception.
allow
analyses
key
characteristics,
such
age,
order,
status.
WIDER
IMPLICATIONS
FINDINGS
multi-country
drivers
pandemic.
past,
periods
following
epidemics
health
crises
typically
births.
contrast,
our
gradual
phasing
out
measures,
allowing
return
more
normal
work
life,
contributed
declining
some
countries.
addition,
indicates
women
avoided
pregnancy
completion
protocol.
FUNDING/COMPETING
INTEREST(S)
use
external
funding.
authors
acknowledge
funding
from
their
home
institution,
Vienna
Institute
Demography
Austrian
Academy
Sciences,
Open-Access
Fund
Sciences.
For
purpose
open
access,
have
applied
CC
BY
public
copyright
licence
Author
Accepted
Manuscript
versions
arising
this
submission.
All
declare
conflicts
interest.