[ConservativeMind]

More on dendritic cells and their importance:

http://en.wikipedia.org/wiki/Dendritic_cells

[A CA Guy]

Stuff like this can be dangerous.

Do you remember about three years ago when they did research into people who had to get Kidney dialysis?
They took blood samples of everyone and found out like 90% of people on dialysis had a disease of the blood related to contact with rodents/rats.

Rats are nocturnal and different creatures than we are.
They are toxic as are their droppings.

If you ever see their droppings, it is mask and gloves time before you clean.

Lots of nasties out there.