Goat Vaccination Schedule: Core and Risk-Based Vaccines for Your Herd

Vaccination is the most cost-effective disease prevention tool available to goat producers — but only when the right vaccines are given correctly, on the right schedule, to the right animals. Goat vaccination is also more complicated than cattle vaccination because many products used in goat practice are used off-label, withdrawal times are often extrapolated rather than established, and small ruminant medicine requires veterinarians with specific species expertise.

This guide covers the core CDT vaccine in detail, risk-based vaccines for specific herd situations, complete scheduling by animal class, and the practicalities of finding and working with a veterinarian who actually knows goats.

Why Goats Need a Different Approach

Goat producers who have also raised cattle quickly discover that goat medicine doesn't simply transfer from the bovine playbook. Several factors make goat vaccination uniquely challenging:

• Off-label drug use is the norm: Many vaccines used in goats are labeled for cattle or sheep. This requires a valid veterinarian-client-patient relationship (VCPR) and means producers cannot simply follow label instructions designed for another species.
• No official milk withdrawal times: Most vaccines and many drugs do not have established withdrawal times for goats. Dairy goat producers must rely on FARAD (Food Animal Residue Avoidance Databank) guidance or extended precautionary periods.
• Immune response differences: Goats may require different dosing intervals or booster schedules compared to cattle. The two-dose primary series for CDT is a common example where cattle protocols (often single annual boosters after initial series) are incorrectly applied to goats.
• Small ruminant specialists are fewer: Finding a veterinarian with genuine goat experience can be difficult in some areas. This makes the VCPR relationship even more valuable when you find a good one.

The practical message: develop a relationship with a veterinarian who has demonstrated small ruminant experience, not just someone who will sign a prescription. The difference in outcomes is substantial.

Find experienced goat veterinarians on FarmVetGuide — filter by species and location to find mobile farm-call vets in your county.

The Core Vaccine — CDT (CD&T)

If there is one vaccine every goat on every farm should receive, it is CDT. Full stop. The CDT vaccine provides protection against three of the most significant clostridial diseases affecting goats and sheep:

• Clostridium perfringens Type C — "struck," acute enterotoxemia in young kids
• Clostridium perfringens Type D — "pulpy kidney disease," overeating disease in well-conditioned growing animals
• Clostridium tetani — tetanus

Some producers use "CD&T" and "CDT" interchangeably. Some products on the market cover only Type D and tetanus (CD&T), while others add Type C (CDT). Check the label of the specific product you are using. For maximum coverage, choose a product that includes both Type C and Type D.

Clostridium perfringens Type C — "Struck"

C. perfringens Type C causes acute enterotoxemia primarily in young kids under 2 weeks of age, though it can affect older animals. The mechanism: beta toxin produced by rapidly proliferating bacteria in the small intestine causes sudden onset hemorrhagic enteritis. Affected kids show profuse bloody diarrhea, severe abdominal pain, and often die within hours of showing first signs. The disease is associated with sudden abundance of high-quality milk — a doe with exceptional milk production, a kid that gorges after a period of restriction, or twin kids that suddenly have access to a doe after being separated.

Prevention through CDT vaccination of the doe before kidding (passive immunity via colostrum) and vaccination of kids beginning at 6–8 weeks is the only reliable strategy. Treatment of clinical Type C disease is usually unsuccessful due to the speed of progression.

Clostridium perfringens Type D — "Pulpy Kidney" / Overeating Disease

C. perfringens Type D is the classic "overeating disease" — a sudden-death syndrome in the best-conditioned, fastest-growing animals in the group. It is the most common clostridial disease of goats and sheep in North America. The pathophysiology: a sudden change in diet (grain overload, lush pasture turnout, access to a fallen grain bag) allows massive proliferation of C. perfringens Type D in the small intestine. The epsilon toxin produced is absorbed into systemic circulation, crosses the blood-brain barrier, and causes brain edema. Death often occurs so rapidly that producers find animals dead with no prior signs — or with only minutes of neurological signs (stumbling, head pressing, convulsions).

At-risk situations include:

• Kids on high-milk, high-concentrate rations growing rapidly
• Animals transitioned too quickly onto grain finishing rations
• Goats that break into a grain storage area
• Sudden access to lush, rapidly fermentable spring pasture
• Wethers on fattening programs

CDT vaccination does not eliminate the risk if dietary management is poor, but it dramatically reduces mortality when animals are properly vaccinated and boosters are current.

Clostridium tetani — Tetanus

Tetanus affects all warm-blooded animals. The spore-forming organism is ubiquitous in soil and manure. Wounds — particularly deep puncture wounds, contaminated castration sites, and navels of newborns — provide anaerobic conditions for spore germination and toxin production. The tetanospasmin toxin blocks inhibitory neurotransmitter release, causing progressive spastic paralysis: stiff gait, "sawhorse" stance, erect ears, lock-jaw (trismus), and eventually respiratory muscle paralysis and death.

In goat operations, the most common tetanus scenarios involve:

• Rubber ring castration: Elastrator bands on males leave ischemic tissue that is highly susceptible to anaerobic infection. Always administer tetanus toxoid (or antitoxin in unvaccinated animals) when banding.
• Tail docking: Same mechanism as castration with rubber rings.
• Navel infections in newborns: Navel dipping with iodine and ensuring passive immunity from a CDT-vaccinated doe are both important.
• Dehorning: Wounds from disbudding or dehorning in older animals.

CDT Dosing: The Most Common Mistake in Goat Vaccination

The single most common CDT vaccination error is giving only one initial dose. CDT is a killed toxoid vaccine — it requires two doses 3–4 weeks apart to generate a primary immune response. A single dose alone provides inadequate protection. Many producers give one dose at purchase or one annual dose without completing the initial series, then wonder why vaccinated animals still die from enterotoxemia.

Standard CDT protocol:

• Initial series: 2 cc SQ — first dose, then booster 3–4 weeks later
• Annual boosters: 2 cc SQ once per year after the initial two-dose series is complete
• Does pre-kidding: Booster 4–6 weeks before expected kidding to maximize colostral antibody levels for passive transfer to kids
• New additions: If vaccination history is unknown, restart with a two-dose series

Kid vaccination schedule:

• Kids from CDT-vaccinated does: first dose at 6–8 weeks of age (maternal antibodies interfere with response before this), second dose 3–4 weeks later
• Kids from unvaccinated does: some producers start at 3–4 weeks and give 3 doses total, then annual boosters
• Annual boosters: continue throughout life

Tetanus Antitoxin vs. Tetanus Toxoid

These two products serve completely different purposes and are often confused:

• Tetanus toxoid (part of CDT): A vaccine — stimulates the animal's own immune system to produce antibodies. Takes 2–3 weeks and two doses to generate protective immunity. Used for long-term prevention.
• Tetanus antitoxin: Pre-formed antibodies — provides immediate but short-lived protection (2–3 weeks). Used as immediate protection in unvaccinated animals undergoing a procedure (castration, disbudding), or as part of treatment in animals showing early tetanus signs. Not a substitute for vaccination.

Best practice for unvaccinated kids undergoing castration or disbudding: administer tetanus antitoxin immediately (short-term protection) AND begin the CDT toxoid series (long-term protection). These can be given simultaneously but at different sites.

Risk-Based Vaccines: When and Why

Beyond CDT, vaccine selection should be based on your specific herd history, geographic region, disease risk, and veterinary guidance. Blanket vaccination with every available product wastes money and provides no benefit for diseases you don't have. The following vaccines are worth considering based on risk factors:

Caseous Lymphadenitis (CL) — Corynebacterium pseudotuberculosis

CL is one of the most economically significant endemic diseases in goat and sheep operations. The bacterium survives in soil and causes characteristic abscesses in the superficial and internal lymph nodes. Abscesses periodically rupture, contaminating soil and spreading infection within the herd. Once CL is established in a herd, complete eradication is extremely difficult.

There is no USDA-licensed CL vaccine for goats in the United States. Colorado Serum Company produces a product (Case-Bac) labeled for sheep that many producers use off-label in goats — this requires a veterinary prescription and VCPR. The evidence for efficacy in goats is variable, and vaccination does not clear existing infections. The primary value is in reducing new infections in herds where CL is already present and depopulation/test-and-cull is not feasible.

For herds that are CL-free: prevention through biosecurity (testing all new additions, observing strict quarantine, not purchasing animals with visible abscesses) is far superior to vaccination. If your herd tests negative, do not import CL by skipping quarantine protocols.

Soremouth (Contagious Ecthyma / Orf)

Soremouth is caused by a parapoxvirus and produces painful proliferative lesions on the lips, muzzle, teats, and feet of goats and sheep. It spreads rapidly within a flock through direct contact and fomite contamination. It is zoonotic — humans can develop painful lesions on hands and arms from contact with infected animals or the live virus vaccine. Wear gloves when handling infected animals or the vaccine.

Critical rule: The soremouth vaccine is a live virus product. Never use it in a herd that has never had soremouth. The vaccine will introduce the virus into a naive herd and cause an outbreak. It should only be used in herds where soremouth is confirmed or historically present, and only after veterinary consultation.

Vaccination technique uses a scarification method — a stiff brush or scarifier is used to abrade the inner thigh or axilla skin, then vaccine is applied to the abraded area. The resulting controlled infection provides lasting immunity. A mild lesion at the vaccination site is expected and indicates a successful take.

Chlamydiosis (Enzootic Abortion)

Chlamydophila abortus is a significant cause of reproductive failure and abortion storms in sheep and goat flocks, particularly in the western United States. Infected does that abort shed massive quantities of organisms in placental tissues — which can then infect other pregnant does and cause further abortions. Chlamydiosis is also zoonotic, posing a particular risk to pregnant women (can cause human abortion) — a serious animal handling safety consideration.

A killed Chlamydia bacterin is available and may be considered in flocks with a history of chlamydial abortion storms or in areas where the disease is endemic. Efficacy is incomplete — vaccination reduces abortion rates but does not eliminate infection. Tetracycline treatment of affected animals and biosecurity around aborting does are complementary control measures.

Rabies

Rabies vaccination is recommended for goats in areas where the disease is endemic in wildlife populations — particularly where contact with raccoons, skunks, foxes, bats, or coyotes is common. Pastured goats that roam extensively, goats in areas with high wildlife density, and pet or show goats with frequent human contact are reasonable candidates for rabies vaccination.

No rabies vaccine is USDA-licensed specifically for goats in the United States. Off-label use of licensed cattle or sheep rabies vaccines (inactivated virus vaccines) is common under veterinary guidance. Annual boosters are typically recommended. Note that legal liability considerations vary by state if a vaccinated goat is involved in a potential rabies exposure — consult your veterinarian and state veterinarian's office.

Respiratory Disease — Pasteurella and Mannheimia Vaccines

Mannheimia haemolytica and Pasteurella multocida are the primary bacterial pathogens in goat pneumonia, often acting as secondary invaders after viral respiratory infections. Several multivalent respiratory bacterins labeled for cattle and sheep (Presponse, Once PMH, various 3-way and 5-way products) are used off-label in goats in high-risk situations — weaning, transport, show goats, feedlot situations.

Respiratory vaccines in goats have demonstrated variable efficacy. They are most useful as an adjunct to good housing management (ventilation, reducing crowding, minimizing stress) rather than as a replacement for environmental improvements. A veterinarian experienced with small ruminant respiratory disease can help determine if vaccination is appropriate for your operation and which product to use.

Foot Rot — Fusobacterium necrophorum / Dichelobacter nodosus

Foot rot causes severe lameness through invasion of the interdigital skin and underlying hoof structures. The two organisms act synergistically: F. necrophorum creates tissue necrosis that allows D. nodosus to penetrate deeper. The disease spreads through wet, contaminated soil and bedding.

A killed D. nodosus bacterin (Footvax) is available and can reduce incidence and severity of foot rot in infected flocks. Efficacy requires serovar matching — if the strains in the vaccine don't match the strains circulating in your herd, protection will be limited. Vaccination is most useful as part of an outbreak control program combined with hoof trimming, copper sulfate foot baths, and antibiotic treatment of affected animals.

In herds with well-drained dry lots, regular hoof trimming, and good biosecurity for new additions, the risk of foot rot is low enough that vaccination may not be warranted.

Mycoplasma — Why There's No Vaccine

Mycoplasma species — particularly M. mycoides subsp. capri, M. capricolum, and M. putrefaciens — cause polyarthritis, mastitis, pneumonia, and septicemia in goat kids. In young kids, mycoplasmosis can cause sudden-onset swollen joints, respiratory distress, and death. It is underdiagnosed because clinical signs overlap with several other conditions and culture is technically demanding.

There is currently no vaccine available for Mycoplasma in the United States. Control is management-based: CAE-negative colostrum management (pasteurized colostrum, colostrum from tested-negative does), testing incoming animals, and aggressive early treatment with tylosin, tulathromycin, or florfenicol under veterinary direction.

Vaccines NOT Typically Recommended — And Why

Campylobacter (Vibriosis)

Campylobacter fetus subsp. fetus (previously C. fetus subsp. intestinalis) causes ovine and caprine vibriosis — an infectious abortion that can cause abortion storms in naive ewes and does. The disease is more significant in sheep than goats in the US. A bacterin is available labeled for sheep and sometimes used off-label in goats in high-risk areas or following a confirmed outbreak. Routine vaccination in goats without a herd history of the disease is generally not recommended.

Leptospirosis

Leptospirosis vaccines are available for cattle and are sometimes used off-label in goats in specific high-risk situations (exposure to infected wildlife water sources, proximity to swine operations). However, routine leptospirosis vaccination in goats is generally not recommended unless there is a clear exposure risk identified by your veterinarian.

Complete Vaccination Schedule by Animal Class

Administering Vaccines Correctly

Correct administration is as important as correct vaccine selection. Errors in technique waste product and fail to produce immunity.

Subcutaneous (SQ) vs. Intramuscular (IM)

Most goat vaccines — including CDT — are administered subcutaneously (SQ). This is a common mistake area: producers accustomed to cattle often give vaccines IM by habit. SQ administration in goats typically uses the loose skin behind the elbow, over the ribs, or behind the neck. Pinch up a skin tent, insert the needle parallel to the body, and inject into the space between skin and muscle.

Check each vaccine label for the specified route. Some biologics (certain modified-live vaccines, some respiratory products) specify IM administration. Using the wrong route can reduce efficacy or cause adverse reactions.

Needle Selection

• Needle gauge: 20–22 gauge is appropriate for most goat vaccines. Finer needles (22 gauge) reduce tissue trauma. Coarser needles (18 gauge) are appropriate for thick suspensions like some aluminum hydroxide adjuvant vaccines.
• Needle length: 3/4 inch for SQ in goats. 1 inch for IM if needed.
• Change needles frequently: A dull needle damages tissue and is more likely to break. Change needles every 10–15 animals or any time a needle contacts non-sterile surfaces.

Injection Site Reactions in Goats

CDT vaccines — particularly those with aluminum hydroxide adjuvant — commonly cause lumps at the injection site in goats. These subcutaneous swellings appear within 24–48 hours of vaccination and typically resolve over 1–4 weeks. They are generally benign but important to distinguish from CL abscesses:

• Vaccine site reaction: Appears within 24–48 hours of known vaccination, at the known injection site, soft-to-firm, usually resolves without rupturing
• CL abscess: Can appear at any location (typically over a lymph node), grows over weeks, becomes very firm, may rupture releasing thick greenish-white exudate that has an almost pathognomonic yeast-like odor

If you're unsure whether a lump is a vaccination reaction or a CL abscess, consult your veterinarian. Do not lance suspected CL abscesses without protective equipment and appropriate containment — the exudate is highly infectious.

Anaphylaxis — Be Prepared

Anaphylactic reactions to vaccines are rare but can be severe and life-threatening. Animals are most at risk with subsequent exposures to a product they have reacted to previously. Signs appear within minutes: sudden agitation, urticaria (hives, skin wheals), labored breathing, profuse salivation, muscle tremors, collapse.

Epinephrine 1:1000 should be on hand whenever vaccinating goats. Goat dosing: 0.5–1 cc per 100 lbs (roughly 0.5–1 mL for an adult goat) given IM or SQ. For kids, scale proportionally (0.1–0.2 mL for very small kids). Secondary antihistamine (diphenhydramine) administration is also useful. Contact your veterinarian in advance to confirm appropriate anaphylaxis response protocol for your size of animals.

Cold Chain and Vaccine Storage

Vaccines that have been improperly stored are inactivated — they will not generate an immune response but will still cause injection site reactions, wasting your time and money while leaving animals unprotected.

• Killed vaccines (CDT, most bacterins): Store at 2–8°C (35–45°F). Never freeze — freezing killed vaccines containing aluminum hydroxide adjuvant destroys the adjuvant structure and renders the vaccine ineffective.
• Modified-live vaccines: Some require refrigeration, others come lyophilized (freeze-dried) and must be mixed with diluent immediately before use. Modified-live vaccines are heat-sensitive and should never be left in sunlight or a hot vehicle.
• Use dedicated vaccine coolers: A vaccine cooler with ice packs maintains temperature during working sessions. Never put vaccines directly on ice or in melted ice water.
• Check expiration dates: Expired vaccines may have reduced or zero efficacy. Inventory your vaccine supply at the beginning of each production year.
• Discard mixed vaccines: Any modified-live vaccine reconstituted from lyophilized powder must be used within the time frame specified on the label (usually 1–2 hours). Discard any unused mixed product.

CAE — Caprine Arthritis Encephalitis

CAE virus (a lentivirus in the same family as ovine progressive pneumonia and HIV) causes progressive arthritis, mastitis (hard udder), pneumonia, and — in kids under 6 months — encephalitis with progressive neurological deterioration. It is one of the most economically damaging endemic diseases in dairy and meat goat operations in the US.

There is no vaccine for CAE. Prevention is entirely management-based:

• Test all animals annually with AGID (agar gel immunodiffusion) or ELISA serology
• Cull or segregate positive animals
• Prevent CAE-positive doe colostrum from reaching kids — use pasteurized colostrum (56°C / 133°F for 60 minutes) or colostrum from tested-negative does
• Never allow kids to nurse CAE-positive does
• Test all purchased animals before introduction and quarantine for 30+ days

CAE-free status is a significant market advantage for breeding stock sales and is achievable with consistent testing and management. Your veterinarian can design a CAE control program appropriate for your herd size.

Johne's Disease (Paratuberculosis)

Johne's disease is caused by Mycobacterium avium subsp. paratuberculosis (MAP) and causes progressive wasting, chronic diarrhea, and death in adult ruminants. There is no cure. A vaccine is available (Mycopar, labeled for cattle), but its use in goats is controversial and requires careful consideration:

• The Johne's vaccine cross-reacts with tuberculin skin tests — vaccinated animals will test positive on TB skin tests, complicating regulatory TB programs
• The vaccine reduces clinical disease and fecal shedding but does not prevent infection or eliminate MAP from the herd
• Most veterinary authorities recommend test-and-cull programs combined with management changes rather than vaccination as the primary control strategy

If Johne's disease has been confirmed in your herd, discuss the pros and cons of vaccination with your veterinarian before proceeding. A comprehensive herd test (serology + fecal culture for positive serological reactors) should precede any vaccination decision.

Record Keeping for Dairy Goats — Withdrawal Time Considerations

Dairy goat producers face a regulatory and food safety challenge that beef producers do not: withdrawal times for most vaccines and drugs are not established for goats. The United States does not have official milk withdrawal times listed for most goat vaccines because the pharmacokinetic studies required for label approval were not conducted in goats.

What to do:

• Contact FARAD (Food Animal Residue Avoidance Databank) at 1-888-USFARAD or farad.org — they provide science-based withdrawal time estimates for extra-label drug use in food animals
• For CDT and most killed bacterins: most producers use a precautionary 72–96 hour milk discard period from the vaccinated doe, though no regulatory requirement exists for killed biologics in most jurisdictions
• Keep detailed records: animal ID, vaccine product name and lot number, date, dose, route, administrator — and any milk discarded
• Work with a veterinarian on a formal herd health plan that documents the vaccination program and any withdrawal time decisions

For Grade A dairy operations selling to licensed processors, consult your state's Department of Agriculture and your milk buyer about their requirements for vaccination records and milk withdrawal.

FAMACHA and Deworming — Different but Complementary

A note on integration: vaccination and deworming are separate programs targeting different disease categories, but they overlap in the calendar and in their impact on overall herd health. The FAMACHA scoring system — developed to guide targeted selective treatment for Haemonchus contortus (barber pole worm) in small ruminants — should be part of every goat producer's toolbox in the Southeast and increasingly in the Midwest and Northeast as H. contortus range expands.

FAMACHA is not a substitute for CDT vaccination and does not address clostridial or other infectious diseases. But the body condition monitoring that FAMACHA encourages (regular hands-on evaluation of every animal) creates an opportunity to catch animals that are due for CDT boosters, identify soremouth lesions, observe injection site lumps that might be CL abscesses, and note animals with poor reproductive outcomes that might benefit from investigation for chlamydiosis or other reproductive diseases.

Producers who handle their animals regularly and know their individuals are better vaccinators, better dewormer managers, and better producers overall.

New Goat Additions: Biosecurity and Quarantine Protocol

Every new animal you bring onto your property is a potential vector for pathogens your herd has never encountered. A rigorous quarantine and testing protocol protects your investment and the health of your existing herd.

1. Quarantine for minimum 30 days (60 days preferred): Separate new arrivals completely from your resident herd — no shared water, equipment, or fencing contact. Complete quarantine means no nose-to-nose contact possible.
2. Test for CAE: Blood test (AGID or ELISA) before introduction. Positive animals should not be admitted to a CAE-negative herd.
3. Test for CL: Clinical examination for abscesses. Consider CL ELISA serology and/or culture of any suspicious lumps. Do not admit animals with active abscesses.
4. Test for Johne's Disease: ELISA serology; fecal culture for ELISA-positive animals.
5. Fecal egg count: Check for internal parasite burden and screen for any high-shedding individuals.
6. CDT vaccination: If vaccination history unknown or unverified, begin a two-dose CDT series during quarantine.
7. Observe for respiratory disease, soremouth lesions, and unusual lameness throughout the quarantine period.

Skipping quarantine is one of the most common and costly biosecurity mistakes in small ruminant production. The investment in a proper quarantine facility pays for itself the first time it prevents introducing a devastating herd problem like CAE or CL.

Finding a Goat Veterinarian

Small ruminant medicine is a specialty within large animal veterinary practice. Not every vet who sees cattle has equivalent experience with goats — the diseases, drug protocols, off-label considerations, and even the physical handling of goats differ meaningfully from cattle practice.

What to look for in a goat veterinarian:

• Experience with meat, dairy, OR fiber goats (depending on your operation type)
• Willingness to make farm calls (mobile practice) — goats are rarely trailered to clinic
• Familiarity with off-label drug use protocols in goats and access to FARAD resources
• Understanding of CDT vaccination protocols, CAE management, CL diagnosis, and Haemonchus control
• VCPR establishment for prescription product access

Search for goat veterinarians on FarmVetGuide — filter by county, species (goats), and service type (mobile farm call). See also sheep veterinarians — vets with small ruminant experience often see both species.

Related resources:

• USDA-accredited veterinarians — required for interstate movement health certificates and export papers
• Goat Kidding Problems: A Guide to Difficult Deliveries
• Cattle Vaccination Schedule — for mixed operations
• Livestock Emergency Kit — including epinephrine for anaphylaxis