Disease/Vaccine
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Foal/Weanlings
|
Yearlings
|
Performance
Horses
|
Pleasure
Horses
|
Brood Mares
|
Comments
|
West Nile Virus
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First Dose:
3 to 4 months
Second Dose :
1 month later
(plus 3rd dose at
6 months in endemic areas)
|
Annual
booster, prior
to expected
risk. Vaccinate
semi-annually
or more
frequently
(every 4
months,
depending on
risk)
|
Annual booster,
prior to
expected risk .
Vaccinate
semi-annually
or more
frequently
(every 4
months,
depending on
risk)
|
Annual
booster, prior
to expected risk
Vaccinate
semi-annually
or more
frequently
(every 4
months,
depending on
risk)
|
Annual 4 to 6
weeks
prepartum
|
Annual booster is
after primary
series. In endemic
areas, booster as
required or
warranted due to
local conditions
conducive to
disease risk.
(Vaccinate
semi-annually or
more frequently
every 4 months)
depending on risk.
|
Tetanus Toxoid
|
From
Non vaccinated mares:
1st dose: 3 to 4 months
2nd dose: 4 to 5 months
From vaccinated mares:
1st dose: 6 months
2nd dose: 7 months
3rd dose: 8 to 9 months
|
Annual
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Annual
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Annual
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Annual,
4 to 6 weeks
prepartum
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Booster at time
of penetrating
injury or
surgery if last
dose not
administered
within 6 months
|
Encephalomyelitis
(EEE,WEE,VEE)
|
EEE (In high risk areas):
1st dose: 3 to 4 months
2nd dose: 4 to 5 months
3rd dose: 5 to 6 months
WEE,EEE (In low risk areas)
and VEE: From non vaccinated
mares:
1st dose: 3 to 4 months
2nd dose: 4 to 5 months
3rd dose: 5 to 6 months
|
Annual Spring
Annual Spring
|
Annual
Spring
Annual
Spring
|
Annual
Spring
Annual
Spring
|
Annual,
4 to 6 weeks
prepartum
Annual,
4 to 6 weeks
prepartum
|
In endemic
areas booster
EEE and WEE
every 6 months;
VEE only
needed when
threat of
exposure; VEE
may only be
available as a
combination
vaccine with
EEE and WEE
|
Influenza
|
Inactivated injectable:
From non vaccinated mares:
1st dose: 6 months
2nd dose: 7 months
3rd dose: 8 months
Then at 3 month intervals
From vaccinated mares:
1st dose: 9 months
2nd dose: 10 months
3rd dose: 11 to 12 months
Then at 3 month intervals
Intranasal modified live virus:
1st dose: 11 months;
has been safely administered to
foals less than 11 months
|
Every 3 to 4
months
Every
6 months
|
Every 3 to 4
months
Every
6 months
|
Annual with
added
boosters
prior to likely
exposure,
every 6
months
|
At lease
semi-
annually,
with 1
booster
4 to 6 weeks
prepartum.
Annual
before
breeding
|
At lease
semi-annually,
with 1 booster
4 to 6 weeks
prepartum.
Annual before
breeding A
series of at least
3 doses is
recommended
for primary
immunization of
foals. Not
recommended
for pregnant
mares until data
available.
Use in activated
vaccines for
prepartum
booster.
If 1st dose is
administered to
foals less than
11 months of
age, administer
2nd dose at or
after 11 months
of age.
|
Rhinopneumonitis
(EHV-1 and
EHV-4)
|
1st dose: 4 to 6 months
2nd dose: 5 to 7 months
3rd dose: 6 to 8 months
Then at 3 month intervals
|
Booster
every 3 to 4
months, up to
annually
|
Booster
every 3 to 4
months, up to
annually
|
Optional:
Semi-annual
if elected
|
5th, 7th, 9th
month of
gestation
(inactivated
EHV-1)
Optional
dose at 3
months of
gestation
|
Vaccination of
mares before
breeding and 4
to 6 weeks
prepartum is
suggested.
Breeding
stallions should
be vaccinated
before the
breeding
season and
semi-annually.
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Strangles
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Injectable:
1st dose: 4 to 6 months
2nd dose: 5 to 7 months
3rd dose: 7 to 8 months
(depending on the
products used)
4th dose: 12 months
Intranasal:
1st dose: 6 to 9 months
2nd dose: 3 weeks later
|
Semi- annual
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Optional;
semi-annual,
if risk is high
|
Optional;
semi-annual
if risk is high
|
Semi-annual
with 1
dose of
inactivated
M-protein
vaccine 4 to
6 weeks
prepartum
|
Vaccines
containing
M-protein
extract may be
less reactive
than whole-cell
vaccines. Use
when endemic
conditions exist
or risk is high.
Foals as young
as 6 weeks of
age may safely
receive the
intranasal
product.
A 3rd dose
should be
administered 2
to 4 weeks prior
to weaning.
|
Rabies
|
Foals born to non vaccinated
mares:
1st dose: 3 to 4 months
2nd dose: 12 months
Foals born to vaccinated
mares:
1st dose: 6 months
2nd dose: 7 months
3rd dose: 12 months
|
Annual
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Annual
|
Annual
|
Annual
before
Breeding
|
Vaccination
recommended
in endemic
areas. Do not
use modified
live vaccine in
horses.
|
Potomac Horse
Fever
|
1st dose: 5 to 6 months
2nd dose: 6 to 7 months
|
Semi-annual
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Semi-annual
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Semi-annual
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Semi-annual
with 1 dose
4 to 6 weeks
prepartum
|
Booster during
May to June in
endemic areas.
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Botulism
|
Foals from vaccinated mare:
3 dose series of toxoid
at 30 day intervals starting at
2 to 3 months of age.
Foals from non-vaccinated
mare:
See comments
|
Consult your
veterinarian
|
Consult your
veterinarian
|
Consult your
veterinarian
|
Initial 3 dose
series at 30
day intervals
with last
dose 4 to 6
weeks
preparum
|
Only in endemic
areas, a 3rd
dose
administered 4
to 6 weeks after
the 2nd dose
may improve
the response of
foals to primary
immunization.
Foals from
non-vaccined
mares may
benefit from:
1) Toxoid at 2, 4
and 8 weeks of
age
2) Transfusion
of plasma from
vaccinated
horse; or
3) anti-toxin.
Efficacy needs
further study.
|
Equine Viral
Arteritis
|
In tact colts intended to be
breeding stallions:
1 dose at
6 to 12 months of age
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Annual for
colts
intended to
be breeding
stallions.
|
Annual for
colts intended
to be
breeding
stallions.
|
Annual for
colts
intended to
be breeding
stallions.
|
Annually for
seronegative
open mares
before
breeding to
carrier
stallion, and
isolate
mares for 21
days after
breeding to
carrier
stallion.
|
Annual for
breeding
stallions and
teasers, 28
days before
start of breeding
season; virus
may be shed in
semen for up to
21 days.
Vaccinated
mares do not
develop clinical
signs even
though they
become
transiently
infected and
may shed virus
for a short time.
|
Rotavirus A
|
Litttle value to vaccinated foals
because of insufficient time to
develop antibodies to protect
during susceptable age.
|
Non
applicable
|
Non
applicable
|
Non
applicable
|
Vaccinate
mares at 8,
9 and 10
months of
gestation,
each
pregnancy.
Passive
transfer of
colostral
antibodies
aid in
prevention of
rotaviral
diarreah in
foals.
|
Check
concentration of
immunoglobulins
in foals to be
assured that
there is no
failure of
passive transfer.
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