Not sure about the airlines, but I work healthcare, and we don't even have latex gloves in the bldg. anymore. Too many patients, and employees/visitors w/ allergies.
Good luck to you- Hopefully you will get the answers you need before your trip. Can someone else do your unpacking, and toss the Ziplocks before you come in contact w/ them.
Just a comment. I flew soon after 9-11, and amazingly, the inspectors, weren't even wearing gloves. YUCK!! I was travelling with other nurses, and we were shocked. I don't know, if it was just a case of her not wearing them, or the airlines not providing them at that time.