Latest News From Diseases

Minnesota Goat Confirmed to Have Highly Pathogenic Avian Influenza
Minnesota Goat Confirmed to Have Highly Pathogenic Avian Influenza

While HPAI has been detected in predatory mammals that prey on infected birds, this is the first identified case of HPAI in domestic livestock in the U.S.

BVDV-Resistant Calf Created Through Gene Editing
BVDV-Resistant Calf Created Through Gene Editing

Gene editing has been used experimentally to produce polled calves and calves with lighter-colored haircoats. Now, USDA researchers, have produced a calf with reduced susceptibility to bovine viral diarrhea virus.

S. Dublin Prevention Protocols
S. Dublin Prevention Protocols

Veterinarians say every dairy operation can benefit from having a checklist to follow on how to prevent and manage outbreaks of this endemic serotype of Salmonella.

3 Offense Tools to Control Crypto in Calves
3 Offense Tools to Control Crypto in Calves

Cryptosporidia is one of the most common scours-causing pathogens in preweaned calves, and, unfortunately, it strikes in the early weeks of life when calves are most vulnerable.

Researchers Confirm There Are Only Six Unique Strains of African Swine Fever Virus
Researchers Confirm There Are Only Six Unique Strains of African Swine Fever Virus

Fewer unique genotypes than the ASF research community first believed means there is less diversity of ASF virus affecting communities across the globe, USDA researchers say.

AABP and AVC Develop Guidelines to Protect Veterinary Business  in the Event of a Foreign Animal Disease Outbreak
AABP and AVC Develop Guidelines to Protect Veterinary Business  in the Event of a Foreign Animal Disease Outbreak

Veterinarians should be prepared to safely and effectively continue providing services to their clients and maintain clinic business continuity in the face of an FAD outbreak.

Australia Raises Its FMD Alert
Australia Raises Its FMD Alert

Australian authorities said this week they have detected "viral fragments" of foot and mouth disease on a small number of products entering the country from Indonesia and China.

UK Officials Rule Out Suspected Case of Foot-and-Mouth Disease
UK Officials Rule Out Suspected Case of Foot-and-Mouth Disease

British officials on Friday ruled out a suspected case of foot and mouth disease in the rural eastern English county of Norfolk.

 When ‘Summer Pinkeye’ Strikes
When ‘Summer Pinkeye’ Strikes

Infectious bovine keratoconjunctivitis can take a toll on cattle, especially calves. Three bovine veterinarians provide their insights on diagnosing the problem and when to use and not use antibiotics for treatment.

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Targeting Anaplasmosis with Medicated Mineral Supplementation

A commonly used and predictable method of addressing anaplasmosis is by incorporating a feed-grade chlortetracycline in the animal’s feed or mineral supplements. When prescribing one, consider the product formulation.

First Human Case of Avian Flu in the U.S. Confirmed in Colorado
First Human Case of Avian Flu in the U.S. Confirmed in Colorado

The case occurred in a person who had direct exposure to poultry and was involved in the culling process of poultry with presumptive H5N1 bird flu, reports the Centers for Disease Control and Prevention.

New: Arovyn Approved for BRD, Pinkeye and Foot Rot
New: Arovyn Approved for BRD, Pinkeye and Foot Rot

This is a broad-spectrum, prescription antibiotic that treats the major organisms associated with bovine respiratory disease (BRD), foot rot and pinkeye.

Scientists Identify Proteins in Bacteria Associated with BRD
Scientists Identify Proteins in Bacteria Associated with BRD

To identify unique proteins that can be used for interventions against BRD, scientists took a closer look at the genetic material of multiple strains of three groups of bacteria commonly implicated with the disease.

Study Affirms U.S. Pork Industry’s Efforts to Keep ASF Out
Study Affirms U.S. Pork Industry’s Efforts to Keep ASF Out

The time you are most at risk for something is when you don't know it's a risk, says Patrick Webb, National Pork Board acting chief veterinarian. That's why a new study to identify biosecurity gaps is causing a stir.

Test Your Knowledge on Trichomoniasis
Test Your Knowledge on Trichomoniasis

Are you up to speed on trich prevention and management best practices?

Producers Warned to Monitor Cattle After Anthrax Was Found in a North Dakota Herd
Producers Warned to Monitor Cattle After Anthrax Was Found in a North Dakota Herd

North Dakota is one of those areas that has been dealing with drought for months, and now another concern, after anthrax was found in a cattle herd in Kidder County last week.

Feds Issue New Rules for Importing Dogs from ASF-Positive Countries
Feds Issue New Rules for Importing Dogs from ASF-Positive Countries

The number of dogs being imported into the U.S. for resale from countries affected by ASF is growing. Combine that with an increasing risk of foreign animal disease spread, and it’s a formula for potential disaster.

New Johne’s Vaccine in the Works
New Johne’s Vaccine in the Works

It’s an old and frustrating disease that is not easily controlled. But Johne’s disease may soon be tamed by a new vaccine under development.

Anaplasmosis: People, Ticks and Certain Flies
Anaplasmosis: People, Ticks and Certain Flies

Producers may not know they have an anaplasmosis problem until they see dead cows or bulls older than 2-years of age. The disease can be devastating because it targets the older stock.    

Researchers Tackle Three Deadly Livestock Diseases
Researchers Tackle Three Deadly Livestock Diseases

The Pirbright Institute is tackling three deadly livestock viruses: porcine reproductive and respiratory syndrome virus and African swine fever virus in pigs and bovine respiratory syncytial virus in cattle.

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Vaccination And Disease Testing Protocols For Interstate Cattle Movement

As you work through the various processes involved with interstate cattle movement, consider vaccinations and tests for four key diseases, as well as the need for official identification (ID) practices.

Dr. Garrett Oetzel from the School of Veterinary Medicine, University of Wisconsin-Madison, checks blood BHBA concentrations using a hand-held meter in a fresh pen.
Knock Out Ketosis

The most common metabolic disease in U.S. dairy cows is ketosis. Research shows one case costs a producer an average of $298.

Foot and Mouth Disease
Biosecurity Preparedness Needed For FMD

The virus is transmitted through aerosolized respiratory droplets and other body secretions including saliva, feces, semen, urine and milk. Transmission can occur indirectly through fomites.

In cattle that have never experienced FMD, it is likely all exposed cattle will develop the disease.
Biosecurity Preparedness Needed For FMD

State and federal animal health officials continue to prepare for FMD in the United States. Emergency response plans are evolving and focus on potential vaccination and limitations of movement.

Genetic sequencing allows for the identification of the specific DNA footprint of a disease, which will allow for improved disease surveillance when illness is detected in a herd.
Genetic Sequencing Research Could Assist in Quicker Emerging Disease Detection

Genetic sequencing allows for the identification of the specific DNA footprint of a disease, which will allow for improved disease surveillance when illness is detected in a herd.

Kayla Clark, DVM, says the problem often presents in calves as a respiratory illness.
S. Dublin On the Rise

Pay particular attention to hutch and transition calves.

The Shifting Landscape of Pinkeye: Control at the Herd and Regional Level

You’ll hear from three veterinarians who have contributed to successful pinkeye control strategies on dairy and beef operations throughout the U.S.

Calves in hutches.
'Don't Kiss the Calves'

Dairy calves can transmit any number of diseases to their human handlers or those who pet them.

With the direct contact method, a susceptible animal becomes exposed through physical contact when the agent from an infected animal or the environment enters open wounds, mucous membranes, or the skin through blood, saliva, nose-to-nose, rubbing, or biting another animal.
Clinical Refresher: The Five Routes of Disease Transmission

Concerns about COVID-19 have people worried about the health and safety of their families, businesses and livestock. Here’s a recap of the methods in which disease is spread.

Post-Mortem of a Heifer on Feed
Post-Mortem of a Heifer on Feed

The images depict a heifer calf that had been on feed for 78 days, at which time it was found dead in the pen. Two other post-mortems from the same pen were found to have similar lesions.

Mechanisms for transmission of CWD prions among captive or wild cervids are not fully understood.
Researchers Find CWD Proteins in Deer Semen

In research with potential implications for breeders and wild herds, scientists have detected the presence of chronic wasting disease (CWD) prions in semen and sexual tissues of prion-infected whitetail deer bucks.

Research Connects Drug Treatments and Antimicrobial Resistance in BRD
Research Connects Drug Treatments and Antimicrobial Resistance in BRD

A new study from KSU on the treatment of non-responding cases of BRD sheds light on the relationship between drug treatments and the emergence of antimicrobial resistance.

Post-Mortem of a Heifer on Feed: Answer
Post-Mortem of a Heifer on Feed: Answer

The images depict a heifer calf that had been on feed for 78 days, at which time it was found dead in the pen. Two other post-mortems from the same pen were found to have similar lesions.

Bovine Veterinarian's Post-Mortem Series
Bovine Veterinarian's Post-Mortem Series

Stay up to date with the Post-Mortem series here.

Time to Rethink Calfhood Brucellosis Vaccination?
Time to Rethink Calfhood Brucellosis Vaccination?

If a vaccine isn’t preventing disease, perhaps the money would be better spent on adding real value to calves.

Purdue Researcher Takes on Antibiotic Resistance
Purdue Researcher Takes on Antibiotic Resistance

Dr. Seleem’s expertise, and the focus of his research, is on developing new antimicrobials and improving delivery of drugs for the treatment of infectious diseases that affect both animals and humans. 

Rachel Reams, DVM, PhD, serves as director of the MSU Veterinary Diagnostic Laboratory.
MSU Scientists Test New Tech for Diagnosing CWD

Michigan State University and Michigan Department of Natural Resources scientists are testing a faster, more accurate way to screen and diagnosis chronic wasting disease, or CWD, in deer.

Clavijo earned a doctorate degree in Veterinary Microbiology/Virology at the University of Guelph in Ontario, and a Doctor of Veterinary Medicine degree from National University in Bogota, Columbia.
USDA Names Alfonso Clavijo Director of NBAF

Alfonso Clavijo, DVM, PhD,  has been appointed as Director of the National Bio and Agro-Defense Facility (NBAF) in Manhattan, Kansas.

During the PMI, the calves acclimate to their new environment, stress levels decline, feed intake increases and immune suppression drops off, in part due to immune response to existing pathogens.
How Metaphylaxis Controls Disease

Numerous controlled and blinded trials have shown that in high-risk calves arriving at feedlots or stocker operations, mass treatment with an antibiotic significantly reduces BRD sick pulls and mortality.

The CIDRAP CWD Resource Center is part of CIDRAP’s Chronic Wasting Disease Response, Research and Policy Program.
CIDRAP launches CWD Resource Center

The Center for Infectious Disease Research and Policy (CIDRAP) at the University of Minnesota announced today that it has launched a new online CIDRAP CWD Resource Center.

This necropsy image shows a calf-fed heifer that had been on feed for 130 days, with no previous treatment history, when first treated for signs of respiratory distress on May 24.
Post-Mortem – Part 1

Can you diagnose cause of death for this feedlot heifer?

Bovine Veterinarian Top 10: Focus on Diseases and Diagnostics - Page 2
Bovine Veterinarian Top 10: Focus on Diseases and Diagnostics - Page 2

Here’s a recap of the most important animal-health related articles of 2019.

Time to Rethink Calfhood Brucellosis Vaccination? Page 2
Time to Rethink Calfhood Brucellosis Vaccination? Page 2

If a vaccine isn’t preventing disease, perhaps the money would be better spent on adding real value to calves.

John Maday
We Need a National Strategy for CWD

Control measures for CWD have mostly evolved on a state-by-state basis, with the exception of some broader controls over movement of captive cervids.

Individual samples would be required for most trichomoniasis testing under the proposed TAHC rules.
TAHC Proposes New Rules for Trich, BVD

The Texas Animal Health Commission (TAHC) has proposed a Bovine Viral Diarrhea Virus (BVDV) control program, including designating BVDV as a reportable disease.

Distribution of LSDV cases in 2014.
Model Identifies High-Risk Areas for Lumpy Skin Disease in Cattle

Researchers have combined two separate computer models to identify areas at highest risk for outbreaks of lumpy skin disease virus (LSDV) in cattle.

Climate change could alter the distribution and prevalence of disease vectors such as mosquito species that contribute to human outbreaks of zoonotic diseases.
Research Suggests Climate Change Could Favor Zoonotic Diseases

Researchers at the University of Queensland and Swansea University have demonstrated that environmental factors can play a role in host specificity and the risk of outbreaks in human populations.

A cow in North Dakota.
Federal Shutdown Affected Probe Into Unique Bovine Tuberculosis Case

The longest federal government shutdown in U.S. history affected an investigation into a strain of bovine tuberculosis in a North Dakota beef cattle herd, say state officials.

More Options Made Available in Texas to Control Cattle Fever Ticks

Cattle producers in Texas can now use hand-held sprayers to control Cattle Fever Ticks, in addition to spray boxes according to a temporary rule change by Texas Agriculture Commissioner Sid Miller.

A Cattle Fever Tick spray box in action in South Texas.
More Options Made Available in Texas to Control Cattle Fever Ticks

Cattle producers in Texas can now use hand-held sprayers to control Cattle Fever Ticks, in addition to spray boxes according to a temporary rule change by Texas Agriculture Commissioner Sid Miller.