But you know who isn't? Iosefka. I want to make sure I get the... uh... entire umbilical cord? So again made sure to use a guide which told me I needed to take out Iosefka. I didn't trust her and didn't send anyone her way anyways. Her clinic is not cool.
It's not obvious and I don't think it's outright explained in the game but in regards to Iosefka, she actually gets murdered sometime between you meeting her and killing Father Gascoigne. That's why she goes from saying she can't open the door to protect her clients, to asking you to find people to bring to her. She's been killed and replaced by Impostor Iosefka. She was turned into one of those blue aliens. The one you kill when you finally get access to the clinic drops Iosefka's Blood Vial...because THAT was the real Iosefka.