Have you been to any petshops lately or handled any other rats? You can transmit viral infections that way.


Rats with SDA will show signs of occular discharge and swelling. In my case one of my rats ended up losing her eye as they can no longer produce the moisture, their eye gets dry and swollen and then eventually it forms a cyst. They also have sneezing, and chipmunk cheeks.


However what you are describing sounds more like a Myco outbreak. These signs can occur though with SDA if there are secondary infections such as Myco, or RPV, POM, etc.

Is it possible to take a picture of her so I can see how she looks? I have seen plenty of rats with SDA, it's pretty hard to miss. Although sometimes they show no symptoms at all. But when they do, it's pretty easy to tell.