I've seen stories like this circulating in the past. Reference to "Rat bite fever" etc.
I would not read too much into it either. I mean, a person can die from a cat bite too...but of course, there is the whole "oooh scary dirty rat" beliefs too. Which can really blow a story our of proportion.
Rat bites can get just as easily infected at cat bites, and I speak from personal experience when I say you need to make sure to clean the would properly and take care of yourself to keep it from infecting.
One of my ratties slipped and caught her foot in the ramp. It was the only uncovered area in the cage, and my girl was quite chubby and starting to get older. I just happened to be in the room and heard her scream. I opened the cage door knowing what was going to happen, but wanted to save her from breaking her ankle....so in went my hand to try and free her. In a panic (definitely not intentional) Ella bit into my finger and held on for dear life. At that point, we were both screaming...but I didn't let go and free'd her foot. Thankfully, she only had a bit of swelling in her ankle and was good as new in just a day or two.....I on the other hand, took several weeks to heal up. My finger swelled up to twice it's size and I had to soak/doctor it for many days.
I did not want to go to the doctor, because I didn't want to have to say my pet rat bit me...I knew how it would be taken (stupid of me, I know). Luckily, I healed up. But I can see how a bite could easily become infected. There was a couple of days where I was about to go to the doctor anyway, but knew I was a "fast healer" and I'd take a good turn at any moment.
Ok, long ramble and a bit off topic. But I do think that story was a very isolated case in that the media just wanted to capitalize on the fact it was from a RAT bite. :sad: