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Vaccination Protocols in the Horse Who, What, When, Where, Why. Benjamin R Buchanan, DVM Diplomate, American College of Veterinary Internal Medicine Diplomate, American College of Veterinary Emergency and Critical Care Brazos Valley Equine Hospital Navasota, TX 77868. How vaccines work:.
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Vaccination Protocols in the HorseWho, What, When, Where, Why Benjamin R Buchanan, DVM Diplomate, American College of Veterinary Internal Medicine Diplomate, American College of Veterinary Emergency and Critical Care Brazos Valley Equine Hospital Navasota, TX 77868
How vaccines work: • Passive Immunization • Active Immunization
How vaccines work: • Passive Immunization
How vaccines work: • Passive Immunization
How vaccines work: • Active Immunization
How vaccines work: • Passive Immunization • Brief period of protection • Antibody absorption one time only • Active Immunization • Prolonged period of protection • Boosting of protective response by additional exposure
How vaccines work: • Passive or Active Immunization • Antibody • Antibody-Antigen Interaction
Who, What, Where, When, Why….. • Who needs to be vaccinated: • All horses need certain vaccinations • Depends on: • Environment • Region of country • Degree of exposure to other horses • Pregnant or Open
Eastern Encephalitis Western Encephalitis Venezuelan Encephalitis West Nile Encephalitis Influenza Equine Herpes Virus Respiratory Abortion Tetanus Tetanus toxoid Tetanus antitoxin Rabies Streptococcus equi (strangles) Potomac Horse Fever (Neoricketsiaristici) Clostridium botulinum Equine Viral Arteritis Who, What, Where, When, Why…..
Intramuscular Intranasal Who, What, Where, When, Why…..
Intranasal Who, What, Where, When, Why…..
Who, What, Where, When, Why….. Rabies • Fatality Rate = 100% • If infected, significant threat to people • Transmission • Preventable disease
Who, What, Where, When, Why….. Rabies • Initial at 5-6 months • Booster in 4 weeks • Booster at one year • Annual • Good Protection • Does not rule out disease
Who, What, Where, When, Why….. Tetanus • Fatality Rate = moderate • Non zoonotic • Transmission • Preventable
Who, What, Where, When, Why….. Tetanus • TOXOID • Initial Series • 5 months and 6 months • Booster at one year • Annual • Booster if interval is > 6 months with SX and lacerations • ANTITOXIN • Associated with hepatic necrosis (theiler’s dz) • Useful in non-vaccinated animals and foals born to non vaccinated mare
Who, What, Where, When, Why….. West Nile Virus • Fatality Rate = modest • Non zoonotic • Transmission • Preventable • June - September
Who, What, Where, When, Why….. West Nile Virus • Transmission
Who, What, Where, When, Why….. West Nile Virus • Flavivirus (WNV) • Initial series > 6 months • Depends on time of year • Maternal antibodies inactivate vaccine • Bi-annual vaccine? • Depends on region • Decent protection, but does not rule out disease
Who, What, Where, When, Why….. Western/Eastern Encephalitis • Fatality Rate = high • Non zoonotic • Transmission • Preventable • June – September
Who, What, Where, When, Why….. Western/Eastern Encephalitis • Togavirus (WEE/EEE) • Initial series > 6 months • Depends on time of year • Maternal antibodies inactivate vaccine • Bi-annual vaccine • Depends on region • Decent protection, but does not rule out disease
Who, What, Where, When, Why….. Streptococcus equi “Strangles” • Fatality Rate = low • Non zoonotic • Highly contagious to other horses • Transmission • Preventable • Sometimes?
Two types of vaccine IM (whole cell or M-protein) IN (provides little systemic immunity) Initial series is 2 doses at 4-6 week intervals Foals mount poor response to vaccine Vaccinate 2-4 weeks prior to exposure Semi-annual Booster Purpura hemorrhagica is a adverse reaction to vaccination Abscesses and muscle soreness are other risks Caution when using IN and IM vaccines IN/IM vaccine can slow a outbreak in a barn Do not vaccinate horses showing symptoms Who, What, Where, When, Why….. Streptococcus equi “Strangles”
Who, What, Where, When, Why….. Equine Influenza • Fatality rate = low • Contagious to other horses • Transmission • Prevention
Who, What, Where, When, Why….. Equine Influenza • Influenza • Vaccinate against type H7N7 (A/equine 1) and H3N8 (A/equine 2) although H3N8 is predominate • Variants between Europe and Americas • Initial series > 6 months • Or booster at 6 months if started at 3 months • Booster can be 2 or 3 shots • Short-term protection • Frequency of vaccine dependent on life style
Who, What, Where, When, Why….. Equine Herpes Virus • Fatality rate = low • Contagious to other horses • Transmission • Prevention
Who, What, Where, When, Why….. Equine Herpes Virus • Vaccinate against types 1 and 4 • Initial series 5 months • Booster at 6 months • Maternal Interference • Short-term protection • Frequency of vaccine dependent on life style
Who, What, Where, When, Why….. Botulism • Fatality rate = moderate-high • Not directly contagious to other horses • Transmission • Prevention
Who, What, Where, When, Why….. Potomac Horse Fever • Fatality Rate = moderate • Non zoonotic • Transmission • Preventable • Challenge infection: • Clinical signs, except fever, prevented in 78% of horses, 4 weeks after vaccination. • 66% challenged after 9 months became ill.
BVEH Wellness Plan • Basic • $29.95/month • No emergency fees • Routine float and sedation • Vaccines – Guarantee* • Reminders and BVEH schedules visit • Fecal • De-wormer • Coggins • Physical and lameness exam • Discount on Strongid C, Solitude, and ACTH testing
BVEH Wellness Plan • Basic • $29.95/month • No emergency fees • Routine float and sedation • Vaccines • Reminders and BVEH schedules visit • Cost of all services • $527.00 • Cost of all vaccines one time • $134
BVEH Wellness Plan • Optimal • $69.95/month • $200 upfront one time • Colic Surgery Guarantee • $7,500 any facility in US • Medical Colic • $1,000 at BVEH • No emergency fees • Reminders and BVEH schedules visit • Performance float and sedation • Vaccines – Guarantee* • Fecal • De-wormer • Annual CBC/Chem • Coggins • Physical and lameness exam • Discount on Strongid C, Solitude, and ACTH testing
BVEH Wellness Plan • Colic Surgery Guarantee • $7,500 any facility in US • Underwritten by Hartford • 2 to 18 years • Free of colic for 12 months • No history of colic surgery • No foal in last 60 days • Fill out form • Notify Mandy at BVEH-Stephenville • Send in monthly report and payment • All vaccines and care must be done by BVEH • Account must be in good standing
BVEH Wellness Plan • Spring (March/April) • Physical Exam • Dental Exam • Lameness Screen • WNV + EWT • Flu • Rhino • Strangles • Coggins • Fecal and De-wormer • Fall (Oct/Nov) • Physical Exam • Dental Exam • Performance Float • CBC, Chem, Elytes • Rabies • Flu • Rhino • Strangles • De-wormer
BVEH Wellness Plan • What is Not Included • Farm Call • Lameness work-up • Other diagnostics • Medications • Other than Colic • Pneumobort • Other vaccines • 4X / year Rhino • Boosters for initial series
BVEH Wellness Plan • What if… • Horse sold • Care will transfer • Horse dies • Prorated refund • Account Past Due • Services put on hold • Don’t use service • No refund • Someone else does routine care • No guarantees
BVEH Wellness Plan • What if… • Horse becomes ill • Manufacturer will pay for testing and treatment • Flu • Rabies • WNV • EWT • I want to sign up • Enrollment form on website www.bveh.com/wellness_plan.htm • I want a discount • Possibly waive $200 per horse with multiple horses or barn