[CynicalBear]

>>The point of all this, Jerome was a serious biblical scholar and made distinctions in his translation where he thought necessary.<<

AKA made changes to God's word.

>>And if CynicalBear is among the greats of Greek biblical scholarship, he is free to provide his curriculum vitae [redacted of course, to protect his privacy]<<

The Catholic Church itself admits the change of Gods' word in Genesis.

[CTrent1564]

And here is a quick link, the reason I linked it is because it cites the debate between Saint Justin Martyr and The Jews of his time, particulary, a Jewish Scholar named Trypo. This debate can be accessed at the Protestant site CCEL or the Catholic one Newadvent. Regardless, the Jews circa 150AD did not view the Hebrew word almah to mean virgin and clearly rejected the Greek LXX use of the word parthenos which clearly means virgin, which is the way the Hellenstic Jews translated almah in the LXX version of the OT.

http://hermeneutics.stackexchange.com/questions/17042/does-isaiah-714-refer-to-a-virgin