Difference between revisions of "Chrysomya bezziana"
Jump to navigation
Jump to search
(19 intermediate revisions by 2 users not shown) | |||
Line 1: | Line 1: | ||
− | + | ===Screw Worm Myiasis=== | |
− | + | [[Image:Screw Worm.jpg|right|thumb|150px|Screw worm larvae - John Kucharski - Wikimedia Commons]] | |
+ | *''C. bezziana'' cause myiasis in both animals and humans | ||
− | + | *Located mainly in tropical regions | |
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | + | *Larvae are '''obligate''' parasites | |
− | |||
− | |||
− | + | '''Recognition''' | |
− | '' | + | *Similar to [[Calliphoridae|''Calliphora spp.'']] |
+ | **Iridescent | ||
+ | **Clear wings | ||
+ | **Blue abdomen | ||
− | + | *Longitudinal stripes on thorax | |
− | |||
− | + | *Larvae have bands of spines | |
+ | **Look like screws | ||
− | |||
− | |||
− | |||
+ | '''Life cycle''' | ||
+ | *Eggs laid in wounds or body cavities | ||
− | + | *Larvae feed as colonies | |
+ | |||
+ | *Larvae drop to the ground to pupate | ||
+ | |||
+ | |||
+ | '''Pathogenesis''' | ||
+ | |||
+ | *Spiracles are exposed as larvae feed which expands the wound | ||
+ | **Creates a foul smelling lesion | ||
+ | |||
+ | *Cause irritation and pyrexia | ||
+ | |||
+ | |||
+ | '''Control''' | ||
+ | *In the USA | ||
+ | **Mass eradication through the release of sterile males | ||
+ | **Currently only persists where flies have migrated across the Mexican border | ||
+ | |||
+ | *In Africa | ||
+ | **Introduced into Libya through the importation of infested livestock | ||
+ | **Sterile males released | ||
+ | **Eradication occurred in 1991 | ||
[[Category:Myiasis_Producing_Flies]] | [[Category:Myiasis_Producing_Flies]] | ||
− | |||
− |
Revision as of 12:23, 5 April 2010
Screw Worm Myiasis
- C. bezziana cause myiasis in both animals and humans
- Located mainly in tropical regions
- Larvae are obligate parasites
Recognition
- Similar to Calliphora spp.
- Iridescent
- Clear wings
- Blue abdomen
- Longitudinal stripes on thorax
- Larvae have bands of spines
- Look like screws
Life cycle
- Eggs laid in wounds or body cavities
- Larvae feed as colonies
- Larvae drop to the ground to pupate
Pathogenesis
- Spiracles are exposed as larvae feed which expands the wound
- Creates a foul smelling lesion
- Cause irritation and pyrexia
Control
- In the USA
- Mass eradication through the release of sterile males
- Currently only persists where flies have migrated across the Mexican border
- In Africa
- Introduced into Libya through the importation of infested livestock
- Sterile males released
- Eradication occurred in 1991