Answer
Dec 19, 2025 - 02:27 PM
Feline Leukemia Virus (FeLV) is a contagious retrovirus that weakens a cat's immune system. Yes, our Thymus Glandular can help to promote the activity of the thymus gland to support your cat's immune system. In addition, I suggest considering our Antiviral formula to further support your cat's immune system along with our Mushroom Immunity PLUS that contains lactoferrin that is known for its antiviral properties. If your cat develops feline herpesvirus (FHV-1) that frequently co-infects FeLV cats, consider adding Lysine to your cat's protocol.
