Environmental Engineering Reference
In-Depth Information
trade wastes. Disinfection of
wool, hide, animal food.
Dust control.
Myiasis
Cochliomya
hominivorax
fly
larva (screwworm)
Humans and
vertebrate animals
Fly (dipterous) infestation
of humans and vertebrate
animal tissue with fly larvae
Variable
Prevent fly larvae or egg
infestation of wounds, skin,
eye, ear, nasopharynx, food,
and genitourinary tract.
Manual removal of larvae.
Personal hygiene, medical
treatment. Release
artificially sterilized male
flies. Apply insecticide
(dichlorvos).
Ya w s
Treponema
pertenue
Humans and
possibly higher
primates
Direct contact with exudates
of early skin lesions of
infected persons; also
contamination from
scratching and flies on open
wounds
2 weeks to
3 months
Better sanitation,
availability of clean water,
personal hygiene, screening
and mass treatment,
including contacts.
Onchocerciasis
a
(river blindness)
Onchocerca
volvulus
,a
nematode
Infected humans,
gorillas rarely
Female black fly
Simulium
genus carrying
Onchocerca
bites human, causing
1 year or
less,
sometimes
Protective clothing. Use
repellent (DEET). Selected
spraying of fast-flowing
