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Dogs + Infectious Diseases

  • There are six primary reasons for vaccination failure. Vaccine inactivation is one reason and is most commonly caused by warming during shipping and handling. In addition, vaccines are not always 100% effective. Dogs may also be unhealthy or too young, leading to vaccine failure. Interference by maternal antibodies can lead to the vaccine being blocked.

  • Veterinarians routinely recommend certain vaccines for all dogs (called core vaccines) while they recommend others more selectively, according to the dog’s environment and lifestyle. Vaccines work by stimulating the body's immune system to recognize and fight particular microorganisms such as a virus, bacteria, or other organism. The vaccine helps prevent infection or lessens the severity of infection and promotes rapid recovery.

  • Valley fever is an infection called Coccidioidomycosis, caused by the soil-dwelling fungus Coccidioides immitis. In the US, it is more commonly found in the southwestern states. Dogs are infected by inhaling spores released by disturbance of soil. These spores infect the lungs, forming spherules, and may migrate to different areas of the body, including the bones, joints, eyes, and rarely the brain. Dogs with weakened immune systems can become ill. Most dogs that are treated appropriately will recover from this disease.

  • Whipworms are intestinal parasites that cause bloody diarrhea. They are diagnosed by finding eggs on microscopic examination of the stool. These eggs, however, are difficult to find. Several medications are effective against whipworms. All medications must be repeated monthly for three months to clear the infection.

  • A zoonosis is a disease or infection that can be transmitted from animals to humans. Although dogs only pose a mild risk of causing disease in humans, those with immunosuppressive conditions such as HIV or those receiving chemotherapy will be at higher risk of becoming ill from these infections. The most common and significant infections that humans can get from their pet dogs include rabies, leptospirosis, ringworm, and gastrointestinal illness such as Salmonella and Campylobacter. Hygiene plays an important role in preventing the spread of these diseases, as well as preventive medicine for your dog, including regular deworming and external parasite preventives.