The infected nurse just went on vacation after the death of the priest (I can't find where she went). 30 persons under vigilance. Spanish source. Welp.
Nowhere, she just got holidays from work the day after the death of the priest.
Nope, every story I find says he was being treated with it. Also it wouldn't make sense to file the exception of they didn't have any.
You may be thinking about the first priest, the second didnt got Zmapp
http://www.europapress.es/madrid/noticia-muere-misionero-garcia-viejo-enfermo-ebola-20140925191152.html
Uno de los tratamientos experimentales que se han desarrollado en los últimos meses, el 'Zmapp', con el que se trató al religioso Miguel Pajares, también repatriado a España, se encontraba agotada en todo el mundo, por lo que se estaban barajando otras alternativas terapéuticas para poder tratarlo.