Kidney disease refers to the inability of the kidneys to work properly. Kidneys perform several key functions in the body, the most important of which is filtering waste products from the blood. Kidneys also maintain the balance of electrolyte levels in the body (such as sodium, potassium, and chloride), maintain blood pressure, and produce urine. Damage to the kidneys can result in the buildup of waste products to dangerous levels in the blood, also known as azotemia.
There are two main types of kidney disease – acute kidney injury (AKI) and chronic kidney disease (CKD). CKD develops slowly over time and can damage the kidneys to the point where they are unable to function properly. CKD was previously termed chronic renal failure (CRF). Unlike acute kidney injury, CKD does not disappear with treatment. CKD affects up to 10% of elderly dogs, while all cats are at risk of developing the disease. Unfortunately, it can take months or even years before a pet with CKD show signs of the disease. In addition, pets that have been diagnosed with AKI are at risk of developing permanent damage to their kidneys which can lead to CKD.
Coccidia are singled-celled organisms (protozoa) that can infect animals, leading to diarrhea and occasionally blood in the stool. Infection is common in both dogs and cats but typically does not cause illness. As a matter of fact, almost all cats will be infected with coccidia at least once in their life. While it is uncommon for signs of illness to occur, puppies, kittens, and immunocompromised pets are most at risk for coccidiosis, the disease caused by coccidia that can make the animal very sick.
Infection occurs when an animal accidentally ingests coccidia shed through the feces of an infected animal. Oftentimes, coccidia is transmitted through contact with a contaminated object or environment, such as water or soil that have been tainted with feces. Different species of coccidia infect different animals. From what we know, species that infect dogs do not infect cats and vice versa. One particular coccidia species that is common in cats, Toxoplasma gondii, is dangerous for humans, particularly pregnant individuals, as it can cause Toxoplasmosis.
Giardia are single-celled organisms (protozoa) that can infect both people and pets, such as dogs, cats, and even chinchillas. Giardiasis (the disease caused by Giardia) can lead to diarrhea and occasionally blood in the stool and vomiting. Giardia live in the small intestine and have two lifecycle stages: the first is the cyst stage. These cysts are inactive and shed through feces. Shedding of cysts can last days or even weeks. Once the cysts are ingested by a host, they mature and multiply in the small intestine. These mature parasites go on to produce cysts and the cycle is repeated.
Infection occurs when an animal or person accidentally ingests the cysts shed through the feces of an infected animal. Oftentimes, Giardia is transmitted through contact with a contaminated object or environment, such as water or soil that have been tainted with feces. Different species of Giardia infect different animals. From what we know, species that infect dogs do not infect cats and vice versa. It is also quite rare for the dog species to infect humans.
Pyometra is a serious bacterial infection of the uterus that occurs most often in older, intact (unspayed) female dogs and cats. The most common bacterium identified in pyometra is E. coli, which typically originates in the feces and ascends through the vagina into the uterus. The infection tends to occur about a month after the dog or cat has been in heat. If unrecognized and untreated, pyometra can lead to a systemic infection or blood poisoning.
Pyometra is often described as being “open” or “closed.” With “open” pyometra, the cervix (the part of the uterus that connects with the vagina) is open, allowing the fluid that forms in the uterus due to the infection to drain out of the body through the vagina.
With “closed” pyometra, where the cervix is closed, the fluid in the uterus cannot drain through the vagina. Instead, it builds up, stretching the uterine walls and potentially causing the the uterus to rupture. If this occurs, the infection may spread throughout the abdomen leading to shock and, potentially, death.
X-ray showing pyometra in a dog
X-ray showing pyometra in a cat
More than 4.5 million people in the U.S. are bitten by dogs each year. Nearly 1 in 5 of those bitten will require medical attention, with children being the most common victims. Any dog, no matter the breed, size, age, or sex, can bite. In fact, it’s very common for young children to be bitten by a dog that they are familiar with. The good news, however, is that most dog bites are preventable.
