Which of the following correctly pairs the type of immunity gained with the example provided? Passive immunity—An elderly patient recovers from bacterial pneumonia and has produced memory cells that can help fight against the same bacteria in the future. Passive immunity—An infant receives antibodies from breastmilk that help to protect the infant against rotavirus infection. Active immunity—A healthy adult uses vitamin supplements to boost their immune system. Active immunity—After cytomegalovirus infection is diagnosed, a doctor gives an immunocompromised patient antibodies to stop the disease from progressing.