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Know about Ancylostomiasis

October 24, 2011  by: YOH YOH  Points: 12   Category: Health    Views: 798

Hookworms are widespread in the tropics and the subtropics. In 1995, WHO estimated that there were 151 million persons infected with hookworms and 65,000 deaths occurred from hookworm disease.

         

Hookworms are widespread in the tropics and the subtropics. In 1995, WHO estimated that there were 151 million persons infected with hookworms and 65,000 deaths occurred from hookworm disease.

Causes:

Causative organism:

Necator americanus and Ancylostoma duodenale

Mode of transmission:

. Eggs in feces are deposited on the ground and under favorable conditions of moisture, temperature and type of soil, hatch to larvae. After developing to the 3rd stage, they become infective in 7 to 10 days.

. Infection of man occurs when the infective larvae penetrate the bare skin, usually of the foot and eventually, produce dermatitis. Infection with Ancylostoma may be acquired by the oral route. The larvae normally enter the skin and pass via lymphatics and blood stream to the lungs, enter the alveoli, migrate up the trachea to the pharynx, are swallowed and reach the small intestine, where they attach to the intestinal wall, develop to maturity and produce eggs in 6 to 7 weeks.

Symptoms:

. Cough

. Tracheitis

. Fever

. Dermatitis

. Iron deficiency anemia

Diagnosis:

Microscopic examination of stool is done to identify the eggs. Blood sample is also examined to see any indication of iron or protein deficiency from the infection.

Treatment:

. Tetrachorethylene, bephenium, thiabendazole can be used for the treatment; toxic reaction are infrequent and therapy can be repeated if necessary.

. Protein and iron supplementation of the diet is desirable.

Prevention:

. Prevention of soil contamination by installation of sanitary disposal systems for human feces, especially sanitary privies in rural areas. Night soil and sewage effluents are hazardous, especially where they are used as fertilizer.

. Education of the public as to dangers of soil contamination and in preventive measures, including wearing shoes.

http://www.yohyoh.com/health/online-doctor/diseases/infectious-diseases/ancylostomiasis/




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