Translucent White Lesions on new BLC

[Zaerri]

Hello!

From limited prior knowledge, as well as the research I have been doing over the past couple of days, I am completely unable to identify what these white markings on the leaf of my new Cattleya-type orchid. It was one of those impulse discount-rack buys, and I figured that I might at worst lose the leaf, but I would obviously prefer not to hinder the plant in such a way.

Below is a picture of what I assume is some sort of fungal infection, perhaps? I attempted to remove the spots with a diluted isopropyl alcohol/dish-washing liquid solution, but to no avail.

Any help whatsoever would be extremely appreciated. =)