They have a nucleocapsid structure with protruding fibers that looks like a satellite or a World War Two mine. They are not readily transmissible from human to human. They are transmitted in the feces and urine of infected rodents. They are associated with renal failure. Korean Hemorrhagic fever is caused by the Hantaan Hantavirus.
Rats harbor rabies but shown no symptoms.
Aggressive cleansing of a rabid animal bite is of little value because the virus enters nerve cells quickly. It is caused by a bullet shaped virus. Rodents are significant reservoirs of rabies. Rabies has a very narrow host range in nature. They are usually transmitted by insect vectors.