Viral disease in dogs

• Rabies
  
  
  Rabies is a deadly disease caused by a virus that attacks the nervous system. The virus is secreted in saliva and is usually transmitted to people and animals by a bite from an infected animal. Less commonly, rabies can be transmitted when saliva from a rabid animal comes in contact with an open cut on the skin or the eyes, nose, or mouth of a person or animal. Once the outward signs of the disease appear, rabies is nearly always fatal.

  
  
  Rabies is a viral disease that causes acute encephalitis in animals and man. Only mammals can get rabies; birds, fish, reptiles and amphibians do not. Most cases of rabies occur in wild animals - mainly skunks, raccoons, bats, and foxes. In recent years, cats have become the most common domestic animal infected with rabies. This is because many cat owners do not vaccinate their cats before the cats are exposed to rabid wildlife outdoors. Rabies also occurs in dogs and cattle in significant numbers and, while not as common, has been diagnosed in horses, goats, sheep, swine and ferrets.
  Improved vaccination programs and control of stray animals have been effective in preventing rabies in most pets. Approved rabies vaccines are available for cats, dogs, ferrets, horses, cattle and sheep. Licensed oral vaccines have been used for mass immunization of wildlife.
  Once the rabies virus enters the body, it travels along the nerves to the brain. Dogs, cats, and ferrets with rabies may show a variety of signs, including fearfulness, aggression, excessive drooling, difficulty swallowing, staggering, and seizures. Rabid wild animals may only display unusual behavior; for example, an animal that is usually only seen at night may be seen wandering in the daytime. In addition to those signs seen in dogs and cats, horses, cattle, sheep, and goats with rabies may exhibit depression, self mutilation, or increased sensitivity to light. Rabies vaccination and animal control programs, along with better treatment for people who have been bitten, have dramatically reduced the number of human cases of rabies in the United States. Most of the relatively few, recent human cases in this country have resulted from exposures to bats. A few rabies cases have resulted from corneal or organ/tissue transplants from an infected donor, but these have been extremely rare. Dogs are still a significant source of rabies in other countries, so travelers should be aware of this risk when traveling outside of the United States.

Control Rabies

1. Have your veterinarian vaccinate your dogs, cats, ferrets, and select horses and livestock. Your veterinarian will advise you on the recommended or required frequency of vaccination in your area.
2. Reduce the possibility of exposure to rabies by not letting your pets roam free. Keep cats and ferrets indoors, and supervise dogs when they are outside. Spaying or neutering your pet may decrease roaming tendencies and will prevent them from contributing to the birth of unwanted animals.
   
3. Don't leave exposed garbage or pet food outside, as it may attract wild or stray animals.
   
4. Wild animals should never be kept as pets. Not only may this be illegal, but wild animals pose a potential rabies threat to caretakers and to others.
   
5. Observe all wild animals from a distance. A rabid wild animal may appear tame but don't go near it. Teach children NEVER to handle unfamiliar animals — even if they appear friendly.
   
6. If you see a wild animal acting strangely, report it to the city or county animal control department.

If have bitten

1. Don’t panic, but don’t ignore the bite. Wash the wound thoroughly and vigorously with soap and lots of water.
   
2. Call your physician immediately and explain how you were bitten. Follow the doctor’s advice. If necessary, your physician will give you the post exposure treatment recommended by the United States Public Health Service and may also treat you for other possible infections that could result from the bite.
3. If possible, confine or capture the animal under a large box or other container if that can be done safely. Once captured, don’t try to pick up the animal. Call the local animal controlauthorities to collect it. If the animal cannot be captured, try to memorize its appearance (size, color, etc.) and where it went after biting you.
4. If it is a wild animal, only try to capture it if you can do so without getting bitten again. If the animal cannot be contained and must be killed to prevent its escape, do so without damaging the head. The brain will be needed to test for rabies.
5. Report the bite to the local health department. Prompt and appropriate treatment after being bitten and before the disease develops can stop the infection and prevent the disease.

Dog Breed

Dog breeds are groups of closely related and visibly similar domestic dogs, which are all of the subspecies Canis lupus familiaris, having characteristic traits that are selected and maintained by humans, bred from a known foundation stock.

The term dog breed may also be used to refer to natural breeds or landraces, which arose through time in response to a particular environment which included humans, with little or no selective breeding by humans. Such breeds are undocumented, and are identified by their appearance and often by a style of working. Ancient dog breeds are some of the modern (documented) descendants of such natural breeds.

A dog breed is represented by a sufficient number of individuals to stably transfer its specific characteristics over generations. Dogs of same breed have similar characteristics of appearance and behavior, primarily because they come from a select set of ancestors who had the same characteristics. Dogs of a specific breed breed true, producing young closely similar to the parents. An individual dog is identified as a member of a breed through proof of ancestry, using genetic analysis or written records of ancestry. Without such proof, identification of a specific breed is not reliable. Such records, called stud books, may be maintained by individuals, clubs, or other organizations.

In biology, subspecies, race and breed are equivalent terms. Breed is usually applied to domestic animals; species and subspecies, to wild animals and to plants; and race, to humans. Colloqiual use of the term Dog breed, however, does not conform to scientific standards of taxonomic classification. Breeds do meet the criteria for subspecies: an interbreeding group of individuals who pass on characteristic traits and would likely merge back into a single homogeneous group if external barriers were removed. The recognition of distinct dog breeds is not maintained by a scientific organization; they are maintained by a number of independent kennel clubs that need not apply to scientific standards and are often inconsistent. For instance, the Belgian Shepherd Dog is separated into four distinct breeds by some clubs, but not in others. Further, some groups of dogs which clearly share a persistent set of characteristics and documented descent from a known foundation stock may still not be recognized by some clubs as breeds. For instance, the feist is a hunting dog raised in the Southern United States for hunting small game. Feists have a consistent set of characteristics that reliably discriminate them from other dog type and breeds. However, the United Kennel Club recognizes one breed of feist, the Treeing Feist, but the American Kennel Club, does not recognize any feist breed.

A dog is said to be Purebred if its parents were purebred and it meets the standards of the breed. Purebred dog breeders of today "have inherited a breeding paradigm that is, at the very least, a bit anachronistic in light of modern genetic knowledge, and that first arose out of a pretty blatant misinterpretation of Darwin and an enthusiasm for social theories that have long been discredited as scientifically insupportable and morally questionable." Moral questions regarding purity of breed include obligatory surgical procedures to spay or neuter animals in numerous contexts. The American Kennel Club, for instance, allows mixed-breed dogs to be shown but requires these animals to be altered. It does not make such requirements for purebred dogs. California Assembly Act AB 1634 was a bill introduced in 2007 that would require all non-working dogs of mixed-breed over the age of 6 months to be neutered or spayed. The bill was morally controversial, leading the American Kennel Club to fight the bill.

The clear genetic distinction between breeds of dog has made dogs of specific breeds good subjects for genetic and human medical research. "Using the dog as a discovery tool" in studying how cancer affects specific breeds may lead to identifying "susceptibility genes that have proved intractable in human families and populations."