Vaccination prevents painful and often fatal infectious diseases in companion cats.
Cats that contract preventable infectious diseases experience significant suffering — feline panleukopenia causes haemorrhagic enteritis and death; feline herpesvirus causes chronic respiratory and eye problems; FeLV causes immune suppression and cancer. Each case of these preventable diseases represents unnecessary welfare harm. Regular vaccination as part of a preventive healthcare programme is one of the highest-impact welfare investments an owner can make.