Rodents "virtually never" transmit a disease that virtually always kills you, and consequently doctors virtually always send you to rabies treatment when bitten by rodents (but it's not as bad nowdays, just standard shots).
That’s surprising, given the CDC’s view on the matter:
“[Small rodents] are almost never found to be infected with rabies and have not been known to transmit rabies to humans.
In all cases involving rodents, the state or local health department should be consulted before a decision is made to initiate postexposure prophylaxis.”
Source: was bitten by rodents.