Yes, shes a virgin. Since shes not brainwashed or uneducated like the rest of the parasites she actually knows stuff. Either she learned it from a book or the doctor teached her.

🤔 misterios misteriosamente misteriosos

And how are more children created if not by reproduction, by cloning?

Yeah by cloning

Or the adults in the city? But those adults too old to reproduce so the best guess is cloning. also remember when they found a picture in their house like the place they stay in? They saw pictures of people that looks like them. (revealed that those parasites are failures or died in battle) So yeah theyre clones.