Brady Collins
Cattle warts, or bovine papillomatosis, are caused by infection with the contagious bovine papillomavirus. While warts usually disappear on their own, vaccines are considered to protect cattle. In the United States, Novartis Animal Vaccines, Inc. has introduced Trep Shield, the first vaccine for hairy heel warts to receive full license approval from the United States Department of Agriculture (USDA). Additionally, Wart Virus Vaccine by Santa Cruz Animal Health is also available for the prevention of viral warts in healthy cattle.
| Characteristics | Values |
|---|---|
| Are cattle wart vaccines available in the United States? | Yes |
| Commercially available cattle wart vaccine | Trep ShieldTM HW Treponema Bacterin by Novartis Animal Vaccines, Inc. |
| Trep Shield's efficacy | Proven in a field trial with 500 cows and heifers |
| Trep Shield's impact | Reduced new cases of heel warts in heifers by 45% and in cows by 27% |
| Trep Shield's dosage | Three shots, each 21 days apart |
| Wart Virus Vaccine by Santa Cruz Animal Health | 50 ml killed virus vaccine for the prevention of viral warts in healthy cattle |
| Wart Virus Vaccine dosage and administration | Administer 10 ml subcutaneous, preferably at two sites along the side of the neck. For older cattle, the dose should be 15 ml. |
| Wart Virus Vaccine storage | Store in a dark place at 2° to 7°C (35° to 45°F). Do not freeze. |
| Wart Virus Vaccine caution | Consult a veterinarian before administering the vaccine. |
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What You'll Learn
Cattle warts are caused by the bovine papillomavirus
Cattle warts, or bovine papillomatosis, are caused by the bovine papillomavirus (BPV). This virus is highly contagious and is transmitted between animals via fomites, including contaminated surfaces and equipment such as milking machines, halters, ropes, tattooing and tagging tools, and fence posts. The virus can also be transmitted through direct contact with infected cattle, and it may enter the skin through cuts or abrasions. Calves are particularly susceptible to infection, especially when they are tattooed or ear-tagged for identification.
There are several types of BPV, and they can cause various lesions on the skin and mucosal surfaces of cattle. These lesions are often referred to as warts and can appear on the head, neck, teats, udder, and other parts of the body. The warts caused by BPV are typically firm, grayish to black in colour, and may have a rough, spiny texture. They vary in size and shape, ranging from small nodules to large cauliflower-like growths.
The BPV types 1, 2, and 5 are known to infect both mesenchymal and epithelial cells, leading to different types of warts. For example, BPV1 and BPV6 cause "teat frond" warts, while BPV5 causes "rice grain" fibropapillomas. These fibropapillomas are the most common lesions in dairy cattle, and they are characterised by their flat, rice-like appearance. BPV can also cause more serious issues, such as squamous cell carcinomas and bladder cancers, in animals that have consumed certain types of plants, such as bracken.
The presence of BPV can be detected through electron microscopic examination, polymerase chain reaction (PCR) tests, and immunohistochemical staining. While there is no specific treatment for BPV infections, several therapeutic vaccines have been developed to induce the early regression of warts. These vaccines trigger a cell-mediated immune response, leading to the rejection of warts. Additionally, proper disinfection of equipment and surfaces is crucial to prevent the spread of the virus.
In summary, cattle warts are caused by the bovine papillomavirus, which is a highly contagious virus that affects the skin and mucosal surfaces of cattle, leading to various types of warts and, in some cases, more severe health issues. Effective prevention and control measures, including vaccination and disinfection, are crucial to manage the spread of BPV in cattle populations.
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Wart vaccines are for prevention, not treatment
Wart vaccines are available for cattle in the United States. However, these vaccines are intended for the prevention of warts, not as a treatment. Warts in cattle are caused by the contagious bovine papillomavirus, which results in skin lesions. Calves are most susceptible to the virus, which can enter through cut or abraded skin.
The Wart Virus Vaccine, for instance, is a killed virus vaccine that prevents viral warts (papillomas) in healthy cattle. It is administered subcutaneously, with a dosage of 10 ml for regular cattle and 15 ml for older cattle. A repeat dose is administered after three to five weeks.
Another example is the Trep ShieldTM HW Treponema Bacterin vaccine, which is the first vaccine for hairy heel warts to receive full license approval from the United States Department of Agriculture (USDA). This vaccine has been proven to reduce new cases of digital dermatitis (hairy heel warts or foot warts) by protecting against the spiral-shaped bacteria that cause these painful lesions.
While vaccines are effective in preventing warts, they are not considered a treatment for existing warts. Warts can be removed surgically using scissors or a side cutter, and proper disinfection of equipment can prevent the spread of the wart virus.
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Trep Shield is a licensed vaccine for hairy heel warts
Cattle warts, or bovine papillomatosis, are caused by an infection with the contagious bovine papillomavirus. While warts usually shrink and drop off after a few months, vaccines are considered to protect cattle. However, vaccines are not found to be of value in treatment.
In 2020, Novartis Animal Vaccines, Inc. introduced Trep Shield, the first vaccine for hairy heel warts to receive full license approval from the United States Department of Agriculture (USDA). Trep Shield is proven to reduce new cases of digital dermatitis (hairy heel warts or foot warts) by protecting dairy cows and heifers from Treponema spp., the spiral-shaped bacteria that are a major cause of these painful foot lesions.
USDA estimates that hairy heel warts affect at least 80% of U.S. dairy herds with more than 200 cows. The efficacy of Trep Shield was proven in a field trial with 500 cows and heifers on a commercial dairy operation with a high exposure to the disease. Four weeks after vaccination with Trep Shield, the incidence of new heel wart cases in heifers was reduced by 45%, and in cows by 27%, compared to controls.
To establish immunity, producers should administer three shots of Trep Shield, each 21 days apart. A booster is recommended by veterinarians to maintain protection. By preventing hairy heel warts with Trep Shield, producers may be able to reduce the frequency of footbaths, with their associated environmental concerns, expense, and disposal problems.
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Vaccines are administered via injection
Cattle warts, or bovine papillomatosis, are caused by infection with the contagious bovine papillomavirus. While warts often disappear without treatment, vaccines are available to prevent infection in cattle. These vaccines are administered via injection.
The Wart Virus Vaccine, for example, is a killed virus vaccine that prevents viral warts (papillomas) in healthy cattle. It is administered subcutaneously, with a dosage of 10 ml for younger cattle and 15 ml for older cattle. The vaccine should be administered at two sites along the side of the neck, with a repeat dose in three to five weeks. Proper storage and administration procedures must be followed, including storing the vaccine in a dark place at a temperature between 2° and 7°C (35° to 45°F).
Another vaccine, Trep Shield, is the first vaccine specifically for hairy heel warts to receive full license approval from the United States Department of Agriculture (USDA). Trep Shield is proven effective in reducing new cases of hairy heel warts by protecting against the bacteria that cause these painful lesions. To establish immunity, three shots of the vaccine should be administered 21 days apart, with boosters as recommended by a veterinarian.
Multiple injections of vaccines have been found to be an effective cure for cattle warts. Vaccines are considered protective but are not a valuable treatment option once cattle are already infected.
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Consult a veterinarian before vaccinating cattle
Cattle warts, or bovine papillomatosis, are caused by an infection with the contagious bovine papillomavirus (BPVs). This virus produces skin lesions, which most often appear on the head and neck of cattle. While warts tend to regress on their own over time, vaccines are available to prevent infection in healthy cattle.
Several vaccines are available to prevent warts in cattle. For example, Trep ShieldTM HW Treponema Bacterin by Novartis Animal Vaccines, Inc. is the first vaccine for hairy heel warts to be fully approved by the United States Department of Agriculture (USDA). The vaccine has been proven to reduce new cases of digital dermatitis, a painful foot lesion caused by bacteria.
Another option is the Wart Virus Vaccine by Santa Cruz Animal Health, a killed virus vaccine for preventing viral warts (papillomas) in healthy cattle. It is supplied in a 50 ml bottle, and the recommended dosage is 10 ml for younger cattle and 15 ml for older cattle, injected subcutaneously at two sites along the side of the neck.
While vaccines are available, it is important to consult a veterinarian before vaccinating your cattle. A veterinarian can advise on the most appropriate vaccine regimen for your herd and help you establish a protocol for preventing and managing warts. In some cases, they may recommend surgical removal of the warts, particularly if they pose significant health risks to the animal.
To prevent the spread of warts, it is crucial to keep the cattle's environment clean and isolate any affected animals. Proper disinfection of equipment such as tack, tagging pliers, and tattooing instruments is also essential. By taking proactive measures and seeking professional advice when necessary, you can effectively manage and minimize the impact of bovine warts on your herd.
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Frequently asked questions
Yes, there are a few vaccines available to prevent viral warts (papillomas) in cattle.
Examples of vaccines include the Wart Virus Vaccine by Santa Cruz Animal Health and Trep Shield by Novartis Animal Vaccines, Inc.
The recommended dosage is 10 ml, administered subcutaneously, preferably at two sites along the side of the neck. For older cattle, the dose should be increased to 15 ml.
Vaccines are considered to protect cattle, but they are not a cure for existing cases. Four weeks after vaccination with Trep Shield, the incidence of new heel wart cases in heifers was reduced by 45%, and in cows by 27%.
