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Worm Infestations

Ankylostoma duodenale

Ascaris lumbricoides

Enterobius vermicularis

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Ankylostoma duodenale

Public Health Importance About one billion infected

Most common cause of IDA worldwide Loss of productivity

Malnutrition and Growth retardation

in children

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Mode of Transmission

Direct contact with contaminated soil

Contamination of water with soil

Eatin contaminated produce

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!ins " !ymptoms

Asymptomatic

Itchin

#ash

Anemia

Abdominal pain

Diarrhea

Loss of appetite $eiht loss%

!tunted physical and mental development

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&revention

Clean drinkin water

'ihtsoil use in farmin(

$earin of shoes

Chemoprophyla)is

!anitary disposal of human e)creta

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Treatment

Albenda*ole%

+#

Mebenda*ole +#

&yrantel pamoate

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A!CA#I! L,M-#IC+IDE!

Most common human worm infection%

Common in tropical and subtropical

areas

Children infected more often than

adults

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Mode of Transmission

Contamination of produce via infected

fertili*ers

Contamination of water supplies

Accidental inestion of infective

ascarid es

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!ins " !ymptoms

Abdominal pain and intestinal

obstruction%

!ymptomatic occlusion of the biliary

tract

+ral e)pulsion%

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!ins " !ymptoms

Couh.

Dyspnea.

/emoptysis.

Eosinophilic pneumonitis 0 Loeffler1s

syndrome2% Liht infection often asymptomatic

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&revention

Avoid contactin soil that may be contaminated

with human feces%

Avoidin fertili*ation with raw human sewae

Do not defecate outdoors%

Dispose of child1s stools3diapers properly%

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&revention

$ash hands with soap and water before

handlin food%

Avoid water or food that may be contaminated%

$ash. peel or cook all raw veetables and fruits

before eatin%

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Treatment

Albenda*ole

Mebenda*ole

&yrantel pamoate%

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E'TE#+-I,! 4E#MIC,LA#I!

$orldwide distribution

Infections more fre5uent in school0 or

preschool0 children

Crowded conditions

Commoner in temperate than tropical

countries

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Mode of Transmission

!elf0infection

/andlin of contaminated clothes or

bed linens

!urfaces in the environment that are

contaminated with pinworm es

Airborne and inhaled

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!ins " !ymptoms

&erianal pruritus

Anore)ia.

Irritability

Abdominal pain%

4ulvovainitis &elvic or peritoneal ranulomas

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&revention

-athe to help reduce the e contamination%

6re5uent chanin of niht clothes are

recommended%

Chane clothes. and sheets after each

treatment%

+pen blinds or curtains in bedrooms durin the

day%

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&revention

&ersonal hyiene should include washin hands

after oin to the toilet. before eatin and after

chanin diapers%

Trim finernails short%

Discourae nail0bitin

Treatment7 &yrantel pamoate