Document Detail

The respiratory and allergic manifestations of human myiasis caused by larvae of the sheep bot fly (Oestrus ovis): a report of 33 pharyngeal cases from southern Iran.
MedLine Citation:
PMID:  12662425     Owner:  NLM     Status:  MEDLINE    
Myiasis--the feeding of fly larvae on living mammals--may have various presentations, depending on the tissues or organs involved. The respiratory and non-respiratory manifestations of human pharyngeal myiasis caused by Oestrus ovis larvae in 33 patients from the Fars province, in southern Iran, are described here. All but one of the 33 cases were male and all lived in rural areas, in close contact with sheep and goats. The myiasis only occurred in spring and summer (April-September). Symptoms always appeared abruptly, all of the cases sensing the presence of foreign bodies in their throats, a burning sensation and itching in the throat being followed by cough and then various other respiratory, nasal, aural, and eye manifestations. Fly larvae were observed directly in the throats of five patients, and recovered in throat washings from all 33 cases. All of the larvae were identified as those of the sheep bot fly (Oestrus ovis). Removal of the larvae, by irrigation of the throat with a large volume of normal saline, provided an effective and fast treatment. In Iran at least, myiasis caused by Oestrus ovis larvae should be considered an occupational disease among farmers who keep sheep and goats.
M Masoodi; K Hosseini
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Annals of tropical medicine and parasitology     Volume:  97     ISSN:  0003-4983     ISO Abbreviation:  Ann Trop Med Parasitol     Publication Date:  2003 Jan 
Date Detail:
Created Date:  2003-03-28     Completed Date:  2003-04-24     Revised Date:  2009-05-18    
Medline Journal Info:
Nlm Unique ID:  2985178R     Medline TA:  Ann Trop Med Parasitol     Country:  England    
Other Details:
Languages:  eng     Pagination:  75-81     Citation Subset:  IM    
Department of Internal Medicine, Nemazee Hospital, PO Box 71345-1414, Shiraz Medical Science University, Shiraz, Iran.
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MeSH Terms
Agricultural Workers' Diseases / epidemiology*,  therapy
Cough / parasitology
Goats / parasitology
Iran / epidemiology
Middle Aged
Myiasis / complications*,  epidemiology,  therapy
Otorhinolaryngologic Diseases / parasitology
Pharyngitis / parasitology*
Sheep / parasitology

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