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00:00 ♪ (dramatic music)
00:26 - Public enemy number one, Anopheles, the malaria mosquito.
00:32 Wanted for willful spreading of disease
00:35 and theft of working hours.
00:37 For bringing sickness and misery to untold millions
00:41 in many parts of the world.
00:43 ♪ (dramatic music)
00:45 This tiny criminal is linked to the destinies of man
00:49 in a cycle of disease transmission
00:51 that could not exist without either man or mosquito.
00:54 Each is solely dependent on the other
00:56 for the existence of the dread malaria.
01:00 Anopheles is readily distinguished
01:02 from other mosquitoes by the fact that she stands on her head
01:05 at an angle of 45 degrees or more.
01:09 This newly hatched female has not yet touched human blood,
01:13 therefore does not contain malaria.
01:16 But if we follow her, we'll soon learn
01:18 how she becomes a malaria carrier.
01:21 Like all thieves and killers,
01:24 she works best under cover of darkness.
01:26 ♪ (dramatic music)
01:28 Locking and barring doors and windows
01:31 will not keep this hungry prowler out.
01:33 She can enter through a small crack.
01:35 ♪ (dramatic music)
01:39 What will she find to steal here?
01:42 Only a little blood, which this man racked
01:45 with the chills and fever of malaria will never miss.
01:48 ♪ (dramatic music)
01:51 Assuming her typical angle of 45 degrees or more,
01:55 she injects saliva to make penetration easier.
01:58 And in a few seconds she begins to feed.
02:02 But this man is sick.
02:04 Along with his blood, she's drinking in the parasites
02:07 which cause malaria.
02:10 Gorged with disease-laden blood,
02:13 she makes her way to some cool, dark place
02:16 where she will rest for several days and digest the blood.
02:20 Although the blood is digested,
02:22 the disease parasites are not harmed in any way.
02:25 On the contrary, they multiply to great numbers.
02:29 Hungry again, she flies out as evening falls
02:33 in search of blood.
02:34 This time she carries with her the malaria parasites
02:38 with which she is infected.
02:40 ♪ (dramatic music)
02:45 Enjoying the peace and plenty of the home
02:47 he's worked so hard to build,
02:49 this man is healthy and happy.
02:51 Little does he suspect he's to be the victim
02:53 of this bloodthirsty vampire.
02:56 ♪ (dramatic music)
02:58 Again, saliva is injected to make penetration easy.
03:01 But this time the saliva contains malaria parasites
03:04 which enter the bloodstream.
03:07 She dines on healthy blood,
03:09 and in payment leaves the chills and fever of malaria.
03:13 ♪ (dramatic music)
03:15 In all probability, this man will not die,
03:18 but neither will he truly be alive,
03:20 for he'll be continually in poor health,
03:23 unable to work and keep up his farm.
03:27 Slowly he will lose all he has worked for.
03:30 His crops will rot in the fields,
03:33 his buildings and fences fall into disrepair.
03:36 His livestock will be neglected,
03:38 and he'll be unable to earn the money
03:40 to feed and clothe his family.
03:43 Multiply this man's tragedy by numberless cases
03:47 all over the world, and we have millions of dollars lost,
03:50 as well as untold misery for the victims.
03:54 And all because of this tiny criminal
03:57 which has assumed the proportions of a monster.
03:59 ♪ (dramatic music)
04:02 Are there six or seven people in the audience
04:04 who will volunteer to help us combat this evil?
04:06 ♪ (whimsical music)
04:08 (bell rings)
04:10 (whistling)
04:10 Good! Well thank you, men.
04:13 But before we can attack the enemy,
04:15 there are certain facts we must know.
04:18 The first and all important fact is this...
04:21 The Anopheles mosquito must have water to lay her eggs in.
04:25 ♪ (soft music)
04:27 These eggs float about and soon hatch
04:30 into larvae or wigglers,
04:33 which lie parallel to the surface
04:34 where they feed and breathe.
04:37 In this larva stage, the mosquito is easy to control.
04:41 After seven to ten days, the larva becomes a pupa,
04:45 or tumbler, and can still be controlled.
04:48 But once she emerges from the pupa as an adult,
04:52 she can slip through our fingers
04:53 and become a menace to human life
04:55 within a mile of her birthplace.
04:58 All right men, now we can begin to fight.
05:00 ♪ (dramatic music)
05:06 ♪ (dramatic music)
05:08 We can start by cutting the weeds
05:10 where the mosquito lays her eggs.
05:13 ♪ (dramatic music)
05:16 (wiggle sound)
05:18 ♪ (dramatic music)
05:21 This makes it easy for the fish to get in
05:23 and eat the wigglers.
05:25 ♪ (dramatic music)
05:27 Spraying oil on the water is a sure way
05:30 of killing mosquito larvae of all kinds.
05:32 The oil enters the breathing tube
05:34 and promptly kills the wiggler.
05:36 ♪ (dramatic music)
05:42 Those are wigglers, Dopey.
05:44 Give 'em the oil treatment.
05:46 (wiggle sound)
05:47 That'll kill 'em.
05:48 ♪ (dramatic music)
05:51 Dusting with Paris green is an effective way
05:54 of killing wigglers, and is economical
05:56 for covering large areas of water.
05:58 A thin film of Paris green is strong enough
06:01 to kill the wigglers without poisoning the fish.
06:04 ♪ (dramatic music)
06:07 Mosquitoes must have water to breed in.
06:11 ♪ (dramatic music)
06:12 These pools will always be a menace to our health,
06:15 unless we drain the water away.
06:18 (mole snorting)
06:20 (laughing) There's one way of doing it.
06:23 Even this hollow stump can harbor mosquito larvae.
06:27 (thump)
06:28 (thump)
06:29 ♪ (dramatic music)
06:30 (mole snorting)
06:32 ♪ (dramatic music)
06:33 Say, that looks like smoke.
06:35 Let's go in and see.
06:37 Atta boy, Dopey!
06:38 Spray all the dark corners and under things.
06:41 You'll find mosquitoes where you least expect them.
06:45 (thump)
06:46 ♪ (dramatic music)
06:47 (thump)
06:48 ♪ (dramatic music)
06:49 (mole squeaking)
06:50 ♪ (dramatic music)
06:51 Yes, we've got to kill everyone in the house.
06:54 (thump)
06:55 (camera shutter)
06:56 ♪ (dramatic music)
06:57 (camera shutter)
06:58 ♪ (dramatic music)
06:59 ♪ (dramatic music)
07:00 ♪ (dramatic music)
07:01 ♪ (dramatic music)
07:02 ♪ (whimsical music)
07:04 (mole squeaking)
07:05 ♪ (dramatic music)
07:08 The permanent way to get rid of breeding places
07:10 is to fill them with dirt.
07:12 ♪ (whimsical music)
07:15 If you want to keep the rain barrel free from wigglers,
07:18 let's put a screen over it.
07:20 ♪ (whimsical music)
07:21 By covering the cracks in the walls with building paper,
07:24 we can keep mosquitoes out.
07:28 ♪ (whimsical music)
07:31 (mole squeaking)
07:34 ♪ (whimsical music)
07:37 ♪ (whimsical music)
07:39 Anything that holds water for a few days
07:42 is a likely breeding place for mosquitoes,
07:44 and we can't afford to take any chances.
07:47 So we're going to bury these cans.
07:52 ♪ (whimsical music)
07:55 ♪ (whimsical music)
08:00 To be safe from malaria, we must put screens
08:03 over all the doors and windows.
08:06 This can save you a lot of misery.
08:10 (mole squeaking)
08:11 Atta boy, Dopey!
08:13 Kill her good and dead!
08:17 (thump)
08:18 ♪ (whimsical music)
08:21 To avoid being bitten by anopheles,
08:24 we must put netting over the beds.
08:26 Then we can sleep in safety.
08:28 Don't let her get away!
08:30 She's a killer!
08:31 ♪ (whimsical music)
08:32 (mole squeaking)
08:33 ♪ (whimsical music)
08:34 Yes, even the small cracks in the floor must be sealed.
08:43 (mole squeaking)
08:46 (snoring)
08:48 And so we leave them to enjoy their well-earned rest,
09:00 free from the annoyance of mosquitoes,
09:02 safe from the dread malaria.
09:05 Contrast their peace and happiness
09:08 with the misery and sorrow of this unfortunate,
09:11 plague-ridden family.
09:13 These people have lost everything,
09:15 simply because they failed to take a few easy precautions.
09:19 Remember, there is only one cause of malaria,
09:23 the mosquito.
09:24 Destroy the mosquito and you will wipe out the disease.
09:28 Then in place of sickness and poverty,
09:30 there will be health, safety and happiness.
09:33 ♪ (dramatic music)
09:33 ♪ (dramatic music)
09:43 [BLANK_AUDIO]