Cats infected neonatally with feline leukemia virus (FeLV) had a higher death rate than their littermate controls. Many showed retarded growth rate and died at 8–12 weeks of age. The major pathological finding was atrophy of the thymus and depletion of other lymphoid tissues; some cats had intercurrent infections. Catsdeveloping lymphoid malignancies as well as atrophy of the thymus died with either alimentary lymphosarcoma or lymphoblastic leukemia. Thesyndrome as found in 29 cats is described.
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Anderson et al. (1971) studied this question.