At-a-glance
Important for cats with outdoor exposure or unknown-contact risk.
Protects against
Feline leukemia virus.
Typical schedule
Commonly a 2-dose initial series with boosters based on ongoing risk profile.
Safety & side effects
Common
Transient lethargy and local discomfort.
When to be cautious
Indoor-only adult cats may have low risk; decisions should be individualized.
Questions to ask your veterinarian
- Is this vaccine core for my pet's species and local disease risk?
- What timing is ideal based on age, prior doses, and exposure profile?
- Can we align this with other preventive care visits?
- What post-vaccine reactions are expected vs urgent to report?
Timing
- Start age
- ~8 weeks
- Booster interval
- ~3 weeks
- Repeat interval
- ~12 months
References
Urgent reaction signs
Seek urgent veterinary care for breathing difficulty, facial swelling, persistent vomiting, collapse, or severe lethargy after vaccination.
Confirm with your vet
Vaccination recommendations and legal requirements vary by region and individual health history.