Eastern & Western Encephalomyelitis

Overview

Eastern & Western Encephalomyelitis

Clinical Signs

The early clinical signs of EEE and WEE may be so mild that they go unnoticed, and may include transient fever and depression, lasting up to five days. Many cases of WEE do not progress beyond this stage. However, EEE is more likely to progress to central nervous signs, which may progress from depression and sleepiness to aggression and agitation. Late in the disease affected horses may develop blindness, head pressing, circling, head tilt, quivering face and leg muscles, and paralysis of the throat and tongue. Terminal horses will usually be down for several days before dying. Death from EEE occurs in 75 - 80% of horses that develop neurologic signs, and in 15 - 30% of those with WEE. Survivors show gradual improvement over weeks to months, but complete recovery is rare. Horses that recover from sleeping sickness often continue to show depression, abnormal behavior, and difficulty in walking.

Intervet Solutions

Name	Description
ENCEVAC T WITH HAVLOGEN	A formaldehyde inactivated, adjuvanted polyvalent equine vaccine-toxoid consisting of Eastern and Western Equine Encephalomyelitis viruses and purified Tetanus Toxoid.
ENCEVAC T+VEE WITH HAVLOGEN	A formaldehyde inactivated, adjuvanted polyvalent equine vaccine-toxoid consisting of Eastern, Western and Venezuelan Equine Encephalomyelitis viruses and purified Tetanus Toxoid.
ENCEVAC TC-4 WITH HAVLOGEN	A combination of inactivated, purified, concentrated, adjuvanted, tissue culture origin, Encephalomyelitis Virus, Eastern and Western, Equine Influenza Virus subtypes A1 and A2 including KY 93 strain, and Tetanus Toxoid.
ENCEVAC TC-4+VEE WITH HAVLOGEN	A combination of inactivated, purified, concentrated, adjuvanted, tissue culture origin, Eastern, Western and Venezuelan, Equine Encephalomyelitis Virus, Equine Influenza Virus subtypes A1 and A2 including KY 93 strain and Tetanus Toxoid.
ENCEVAC WITH HAVLOGEN	A formaldehyde inactivated, adjuvanted bivalent equine vaccine consisting of Eastern and Western Equine Encephalomyelitis viruses.
PRESTIGE V WITH HAVLOGEN	A combination of inactivated, purified, concentrated, adjuvanted, tissue culture origin, Equine Encephalomyelitis Virus, Eastern and Western, Equine Herpesvirus EHV-1 and EHV-4. Equine Influenza Virus subtype A2 including KY 93 strain and Tetanus Toxoid.
PRESTIGE V+VEE WITH HAVLOGEN	A combination of inactivated, purified, concentrated, adjuvanted, tissue culture origin, Eastern, Western, and Venezuelan Equine Encephalomyelitis Virus, Equine Herpesvirus EHV-1 and EHV-4, Equine Influenza Virus subtype A2 including KY 93 strain and Tetanus Toxoid.
PRESTIGE^{IV FOALSHOT}	A combination of inactivated, purified, concentrated, adjuvanted, tissue culture origin, Equine Encephalomyelitis Virus, Eastern and Western, Equine Herpesvirus EHV-1 and EHV-4 and Tetanus Toxoid.