In an episode titled, "5:00 P.M.," a woman named Natalie (Enuka Okuma) is wheeled into the emergency room. Other medical dramas have often depicted childbirth, but not to this level of graphic detail.

When transferred in a later cycle, it led to a healthy, full-term pregnancy and the birth of a baby boy. This isn't just a one-off story, either.

The birth of a healthy human baby by an infected in 28 Years Later blows the entire franchise open in what we know about this kind of zombie.