swollen lymph nodes

Cat scratch fever or disease (CSD) is a bacterial infection caused by Bartonella henselae. Bartonella are a group of gram-negative bacteria that parasitize erythrocytes (red blood cells or RBCs) of the host and are transmitted by arthropods. Most people infected with cat scratch fever have been previously bitten or scratched by a cat. Cat bites are less frequently implemented in transmission than are scratches.

A disease first described in a California ground squirrel around 1913, tularemia is also known as "rabbit" or "deerfly fever". The disease is caused by a gram-negative bacterium by the name of "Francisella tularensis". The bacterial septicemia may affect over 50 different species of wild and domestic mammals, birds, reptiles, fish, and even man.