Feline leukemia virus (FeLV) and feline immunodeficiency virus (FIV) are among the most common infectious diseases of cats. Although vaccines are available for both viruses, identification and segregation of infected cats form the cornerstone for preventing new infections. Guidelines in this report have been developed for diagnosis, prevention, treatment, and management of FeLV and FIV infections. All cats should be tested for FeLV and FIV infections at appropriate intervals based on individual risk assessments. This includes testing at the time of acquisition, following exposure to an infected cat or a cat of unknown infection status, prior to vaccination against FeLV or FIV, prior to entering group housing, and when cats become sick. No test is 100% accurate at all times under all conditions; results should be interpreted along with the patient's health and risk factors. Retroviral tests can diagnose only infection, not clinical disease, and cats infected with FeLV or FIV may live for many years. A decision for euthanasia should never be based solely on whether or not the cat is infected. Vaccination against FeLV is highly recommended in kittens. In adult cats, antiretroviral vaccines are considered non-core and should be administered only if a risk assessment indicates they are appropriate. Few large controlled studies have been performed using antiviral or immunomodulating drugs for the treatment of naturally infected cats. More research is needed to identify best practices to improve long-term outcomes following retroviral infections in cats.

Background The number of pet cats is increasing in most countries, often outnumbering pet dogs, yet cats receive less veterinary care than their canine counterparts.1 Clients state the difficulty of getting the cat into a carrier at home, driving to the clinic, and dealing with the fearful cat at the veterinary clinic as reasons for fewer visits.2 Educating and preparing the client and the veterinary team with regard to respectful feline handling is necessary in order to avoid stress and accomplish the goal of good health care. Without such preparation, feline stress may escalate into fear or fear-associated aggression. The resulting stress may alter results of the physical examination and laboratory tests, leading to incorrect diagnoses (eg, diabetes mellitus) and unnecessary treatments.

Guidelines rationale: A cat’s level of comfort with its environment is intrinsically linked to its physical health, emotional wellbeing and behavior. Having a basic understanding of the cat’s species-specific environmental needs and how cats interact with their environment will provide a foundation for addressing these fundamental requirements. Environmental needs: Addressing environmental needs is essential (not optional) for optimum wellbeing of the cat. Environmental needs include those relating not only to the cat’s physical surroundings (indoors or outdoors; in the home environment or at the veterinary practice) but also those affecting social interaction, including responses to human contact. Five ‘pillars’ framework: The authorship panel has organized the Guidelines around five primary concepts (‘pillars’) that provide the framework for a healthy feline environment. Understanding these principles and the unique environmental needs of the cat will help veterinarians, cat owners and care-givers to reduce stress, the incidence of stress-related disorders, and unwanted behavior in their feline patients and pets. The recommendations in the Guidelines apply to all pet cats, regardless of lifestyle.

To advise veterinarians, veterinary students, veterinary technicians and cat owners about the ways cats naturally feed, and to recommend how to feed the pet cat to optimally satisfy its behavioral needs using feeding programs that include play and predation, reduce stress in single and multi-cat environments, and meet nutritional requirements for overall health. Feeding strategies need to be tailored to the individual cat and household.

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