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9. As scabies is a disease caused by an arthropod called scabies mites, its control
measure especially in epidemic cases, consists of fumigation with insecticides to
the living room as best alternative and thus it has no individual treatments.
III. Give short answers for all of the following questions.
10. List 4 basic ways by which injurious chemicals produced by arthropods are
introduced into or on to the body of human and other animals.
A. _____________________________________________________
B. _____________________________________________________
C. _____________________________________________________
D. _____________________________________________________
6.1.4. Learning objectives
6.1.4.1 General objective
The general objective of this module is to equip environmental health professionals
with knowledge and skills needed to deal with preventive and control measures of
common skin diseases.
6.1.4.2 Specific objectives.
After completing of reading this module, environmental health professionals will be able
to:
o Describe common skin diseases.
o List important prevention and control measures.
o Portray the significance of hygienic behavior in the mitigation of common skin
diseases.
6.2. The Skin and Diseases Associated with It
Skin diseases are common through out Africa and are dominated by bacterial and
superficial fungal infections. The eczemas are ubiquitous. In some areas discoid lupus
erythematosus is common and lichen planus is seen far more frequently in temperate
countries. There are the more chronic infections –Leprosy, Leishmaniasis, Scabies and
Onchocerciasis– which affect the skin so distinctively; the whole range of ulcers of the
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