Class Notes (1,049,772)
US (413,352)
TAMU (5,716)
WFSC (34)
Lecture 23

WFSC 301 Lecture Notes - Lecture 23: Bighorn Sheep, Epizootic Hemorrhagic Disease, AutopsyPremium

1 pages44 viewsSpring 2017

Wildlife & Fisheries Sci.
Course Code
WFSC 301
Walter Cook

This preview shows half of the first page. to view the full 1 pages of the document.
Tuesday, March 28, 2017 at 4538 PM
Lecture 23: Epizootic Hemorrhagic disease
Common name: Ibaraki disease
endemic in the US
Mortality rates: higher in the summer and captivity
Etiologic Agent: EHDV
7 different serotypes
• dsRNA
transmitted by biting midges
History & Geogrpahic Distribution:
Seen in Japan, Caribbean, South America and parts of Europe
Hosts: White tailed deer, mule deer, pronghorn, bison, cattle, bighorn sheep
Signs & Gross lesions:
1st few weeks are minor
after a week symptoms become apparent:
- fever, swelling, trouble breathing
• Edema
Fluid around the heart
Hemorrhages on stomach
Blood and tissue samples taken at necropsy from the spleen, lymph nodes, or
ELISa, immunofluorescence or RT PCR
Prevention and control:
Reduce breeding ground for vectors
There is no vaccine for deer, only supportive care
Antibiotics like Draxxin can help reduce bacterial infections that may spike
BTV is more prevalent in cattle
You're Reading a Preview

Unlock to view full version

Subscribers Only

Loved by over 2.2 million students

Over 90% improved by at least one letter grade.