passive immunity (noun)

1. During the 1918 Spanish flu pandemic, passive immunity was observed in babies born to mothers who had previously been infected with the virus.

2. In the horror movie, a group of scientists discover a secret laboratory where passive immunity is being experimentally induced in human subjects.

3. The painting depicted a mother and her unborn child, symbolizing the concept of passive immunity being transferred through the placenta.

4. In the science fiction novel, passive immunity is achieved through the injection of futuristic nanobots that produce antibodies against the alien virus.