Vectors,
Mechanical
Vectors,
Biological
Vectors
Arthropods
are
important
means
of
indirect
transmission.
Living
organisms
that
carry
disease
agents
from
one
host
to
another
are
called vectors.
Arthropods
may
serve
as mechanical
vector,
if
they
carry
agents
of
disease
on
legs
and
other
body
parts.
The
animal
may
serve
as
a biological
vector.
In
malaria,
yellow
fever.etc.
the
disease
organisms
infect
the
arthropod
and
accumulate
these
in
salivary
glands
from
which
they
are
injected
during
next
bite.
In
Rocky
Mountain
spotted
fever
and
Lyme
disease,
microbes
gather
in
the
ticks
gut
and
enter
a
wound
when
the
tick
feeds
in
human
skin.





