____________________
weather
time
is
cold
and
the
flu
season
.
____________________
make
us
sick
.
They
cause
us
to
have
the
flu
or
cold
.
Since
viruses
make
us
sick
,
we
sometimes
call
them
____________________
.
Viruses
get
into
our
bodies
through
our
____________________
,
____________________
____________________
____________________
.
____________________
____________________
____________________
are
our
body's
ways
to
send
viruses
&
germs
back
.
When
we
get
sick
,
we
have
fever
because
viruses
____________________
the
hot
.
When
we
get
sick
,
we
should
rest
and
____________________
____________________
____________________
____________________
.
