Innovations in wildlife vaccines are reshaping conservation strategies across the globe. Once focused primarily on human health, vaccines are now being deployed to protect endangered species from infectious diseases—from golden lion tamarins immunized against yellow fever to California condors shielded from avian influenza. Through both captive trials and field interventions, researchers are demonstrating meaningful efficacy and immunity in vulnerable populations. While such interventions challenge traditional “hands-off” conservation philosophies, the mounting threats of disease, habitat loss, and human encroachment increasingly demand proactive solutions. In this emerging era, vaccines offer a compelling and scientifically grounded approach to safeguarding biodiversity and preventing extinction—blending veterinary medicine with ecology in novel, impactful ways.
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