Revolutionary Gene Therapy for Feline Birth Control.

A new study published in the journal Nature Communications has shown that a single shot of gene therapy prevented pregnancy in cats for at least two years. The contraceptive shot delivers a gene that enters muscle cells, enabling them to pump out a substance called anti-Müllerian hormone, or AMH, which interferes with the development of egg follicles in the ovaries. If larger studies confirm that the treatment is safe and effective over a cat’s lifetime, controlling cat populations won’t require the surgical expertise of veterinarians.