No lo hay ni siquiera en inglés, donde "herd immunity" se usa conjuntamente con "community immunity" y "group protection".
https://www.healthline.com/health/herd-immunitySome leaders — for example, Boris Johnson, the prime minister of the United Kingdom — suggested it might be a good way to stop or control the spread of the new coronavirus, which causes COVID-19.
Herd immunity is also called community immunity and herd or group protection.Herd immunity happens when so many people in a community become immune to an infectious disease that it stops the disease from spreading.