| Salutations Monster Hunter Are you ready for your first Challenge? Your mission, should you choose to accept it, is to read the following case history, identify the parasite, and answer any bonus questions. I'll start you off with an easy one. Identify That Parasite!!! Some of your sheep have started sneezing. Additionally, some of the sheep have been shaking their heads and stamping their feet. On physical exam, the affected sheep have serous-to-mucopurulent nasal discharge. You bust out your flashlight (nerd) and spot this nasty little bugger wriggling in one of the sheep's nasal passages ( see image below ). You scream in disgust/ delight! Which of the following is the identity of the parasite? (A) Gasterophilus nasals (B) Trichuris ovis (C) Hypoderma ovis (D) Oestrus ovis (E) Dermatobia hominis Bonus Question: What is your treatment of choice? (Hint: Not Flonase) [SEE ANSWERS BELOW] . . . . . . . . . . . . . . . . . . . [SEE ANSWERS BELOW - don't cheat!] . . . . . . . . . . . . . . . . . . . Answers Correct Answer : (D) Oestrus ovis (aka., sheep nose bot fly, sheep nasal fly, sheep bot fly). The larval stages of O. ovis develop in the nasal cavity of sheep and goats. While in flight, the adult flies deposit the larvae directly into or around the nostrils. Click here for additional images of Oestrus ovis . Incorrect Answers : (A) Gasterophilus nasals - This is the throat bot fly of horse. (B) Trichuris ovis - This is the sheep whipworm. (C) Hypoderma ovis - This is the warble fly of cattle. (E) Dermatobia hominis - This is the human bot fly. Bonus Answer : Ivermectin (200 mcg/kg, PO or SC, once) is the treatment of choice. This therapy is highly effective against all stages of the larvae. Source: Merck Manual Please Read: Thank you for participating! If you enjoyed this email or found it helpful, then please help The Monster Hunter's Guide by forwarding this to your friends, colleagues, classmates, students, ex-mother-in-law, etc. You may also help by liking The Monster Hunter's Guide on Facebook ( click here to like us on facebook ). I know that sounds cheesy, but doing this will truly help our site! Long days and pleasant nights, Lance Wheeler Creator & Owner, The Monster Hunter's Guide to Veterinary Parasitology |
Salutations Monster Hunter
Are you ready for your first Challenge?
Your mission, should you choose to accept it, is to read the following case history, identify the parasite, and answer any bonus questions. I'll start you off with an easy one.
| |
Identify That Parasite!!!
Some of your sheep have started sneezing. Additionally, some of the sheep have been shaking their heads and stamping their feet. On physical exam, the affected sheep have serous-to-mucopurulent nasal discharge. You bust out your flashlight (nerd) and spot this nasty little bugger wriggling in one of the sheep's nasal passages (see image below). You scream in disgust/ delight! Which of the following is the identity of the parasite?
(A) Gasterophilus nasals
(B) Trichuris ovis
(C) Hypoderma ovis
(D) Oestrus ovis
(E) Dermatobia hominis
Bonus Question: What is your treatment of choice? (Hint: Not Flonase)
| |
[SEE ANSWERS BELOW]
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
[SEE ANSWERS BELOW - don't cheat!]
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
| |
Answers
Correct Answer:
(D) Oestrus ovis (aka., sheep nose bot fly, sheep nasal fly, sheep bot fly). The larval stages of O. ovis develop in the nasal cavity of sheep and goats. While in flight, the adult flies deposit the larvae directly into or around the nostrils. Click here for additional images of Oestrus ovis.
Incorrect Answers:
(A) Gasterophilus nasals - This is the throat bot fly of horse.
(B) Trichuris ovis - This is the sheep whipworm.
(C) Hypoderma ovis - This is the warble fly of cattle.
(E) Dermatobia hominis - This is the human bot fly.
Bonus Answer:
Ivermectin (200 mcg/kg, PO or SC, once) is the treatment of choice. This therapy is highly effective against all stages of the larvae.
Source: Merck Manual
| |
Please Read:
Thank you for participating! If you enjoyed this email or found it helpful, then please help The Monster Hunter's Guide by forwarding this to your friends, colleagues, classmates, students, ex-mother-in-law, etc. You may also help by liking The Monster Hunter's Guide on Facebook (click here to like us on facebook). I know that sounds cheesy, but doing this will truly help our site!
Long days and pleasant nights,
Lance Wheeler
Creator & Owner, The Monster Hunter's Guide to Veterinary Parasitology
| |
|
|
| |
|
