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Seroepidemiology of Toxoplasma gondii infection in the Israeli population.
[congenital toxoplasmosis]
Toxoplasmosis
seroprevalence
varies
considerably
between
countries
.
We
studied
the
seroprevalence
of
Toxoplasma
gondii
IgG
antibodies
in
a
national
sample
of
the
Israeli
population
;
2794
sera
were
tested
.
The
highest
age-adjusted
seroprevalence
rate
was
in
Arabs
(
non-
Bedouins
)
(
60
.
4
%
)
,
significantly
higher
compared
to
the
rate
in
Jews
(
19
.
9
%
)
and
Bedouins
(
27
.
5
%
)
(
P
<
0
.
01
)
.
There
were
no
significant
gender
differences
.
Seropositivity
increased
with
age
in
all
population
groups
.
For
Jews
,
seropositivity
was
associated
with
place
of
birth
and
socioeconomic
status
.
A
finding
of
low
seroprevalence
rate
in
Bedouins
despite
their
poor
living
conditions
and
close
contact
with
livestock
is
surprising
,
and
might
be
attributed
to
the
dry
and
hot
climate
conditions
in
their
area
of
residence
.
In
women
of
reproductive
age
the
seroprevalence
was
15
.
1
%
in
Jews
,
25
.
4
%
in
Bedouins
and
72
.
3
%
in
Arabs
(
non-
Bedouins
)
.
Thus
,
the
majority
of
pregnant
women
are
susceptible
to
primary
infection
with
T
.
gondii
,
and
the
risk
for
congenital
toxoplasmosis
remains
high
.
