The Pensacola journal. (Pensacola, Fla.) 1898-1985, 1922-04-16
PREVENTION OF MALARIA.

There are several methods which
can be used to prevent malaria.
First. by getting rid OF the anopheles
mosquitoes which carry It: second, by
not letting those mosquitoes get to
well people to bite them; third, by so
treating persons having malarial para
sites in their blood that they will not
infect the mosquitoes; fourth, by so
protecting healthy people that even If
they are bitten by infected mosquitoes
they will not develop maiarial fever.
First. Anopheles live mainly out of
doors. and as they cannot bear the hot
sun. they shelter themselves in the
brush and high weeds all day and
come out at night to feed. All brush
and high weeds near ones house
should be cut down, SO that mosquitoes
cannot shelter themselves close to it.
Also the brush about their breeding
places, so that the sun may get in and
dry them up. You may destroy their
breeding places by draining or filling
up the pools, marshes in which they
breed. Or by oi1ing such pools as we
cannot drain or FILL Oil forms layer
on the surface of the water, and the
larvae not being able to get through
this, are suffocated and they die. Once
in two weeks would be often enough
to use the oil (coaI oil1, but it is best
done once week. Use enough coal oil
to form layer all over the surface
On large and grassy pools oil cannot
be depended on, as the wind will blow
the oil all over to one side. SO that the
surface on the other side is not cover
ed But almost anything that makes
water foul and bad smelling will pre-
vent anopheles breeding in 1t, such as
soap suds, gas, tar, refuse from mills,
etc. Where water is often disturbed
anopheles are rarely found. 1t Is best
to oil all water barrels or artificial
containers of any kind. as 1t may breed
anopheles. and will breed other mos
quitoes which are. at least, a nuisance.
The top minnows which are so album
dant in some of the small sluggish
streams eat large numbers OF the ano-
pheles' larvae
Second to prevent the mosquitoes
from getting to healthy persons to
bite them, houses should be we'll and
closely screened. Screens with holes in
them or that do not fit tight, may do
more harm than good and be mesquite
traps. Because the anopheies tries to
enter house all night long and thus
has time to find the smallest opening !
in the screening. They try to leave the |
house at first light, and II they cannot |
find the way out before broad daylight |
they are trapped in the house and hide !,
IN the dark places, and thus they accu- |
mulate in the house. If mosquito bars |
u9sa -. -
with no slit up the side. They should |
be tucked in under the mattress all /
around and never allowed to fall down
to the floor; third. the third method of
preventing infection of mosquitoes is
by treating every one who has these
parasites in his blood until he is cured
completely, not just partly well, to re-
lapse later, and by keeping those peo-
pie in a screened house, or at least un-
der a mosquito bar at night, as long /
as they have the parasites in their /
blood. A man may have parasites in
his blood and be infective to mosqui-
toes which bite him and show no sign
OF sickness. People are apt to have
parasites in their blood for some time.
weeks or even months after an attack
of malarial fever It takes a large
number Of parasites to make enough
poison to produce fever The sexless
parasites. which divide. are the only
ones which produce fever, and there
may be only moderate number OF
these in ones blood, and yet enough
male and female forms to infect mos
quitoes. These last are the only forms
which do infect mosquitoes. Fourth,
DeoDie NAV he immune against fnalas-- |
ial fever, If small doses of qIlinine are