Certainly. And for many of the same reasons. I don't mean simply "age" I mean the specific reasons for loss of muscle density, lose baggy skin, arthritis, etc. are the same in snakes as the reasons we get these conditions in advanced age.

It's not surprising to me that bertha got a respiratory infection even though she was kept under the same conditions and even the same tank as much younger snakes. They were unaffected. Same way an old person can easily get pneumonia when a young person with the same infection may only get a scratchy throat or not get sick at all. Thankfully it was just bacterial (common, normally harmless bacteria) and antibiotics took care of it. She's OK now.