The
Black
Death
or
____________________
plague
is
caused
by
a
____________________
.
It
occurs
mainly
in
wild
rodents
,
such
as
____________________
.
However
,
it
can
be
passed
to
humans
who
come
into
direct
contact
with
infected
animals
or
who
are
bitten
by
a
____________________
from
an
infected
animal
.
An
infected
person
becomes
ill
within
hours
or
days
.
____________________
include
high
fever
,
swelling
,
a
rash
and
changes
in
blood
pressure
.
When
plague
is
untreated
,
many
victims
die
within
a
few
days
,
but
it
can
be
treated
in
the
modern
day
with
____________________
.
During
the
____________________
,
there
was
a
____________________
of
plague
across
the
____________________
hemisphere
,
infecting
populations
in
the
Middle
East
,
China
and
____________________
.
About
13
million
people
in
China
and
25
million
people
in
Europe
died
from
the
disease
.
It
was
called
the
____________________
____________________
because
of
the
dark
color
of
many
victims'
____________________
after
death
.
