Has anyone ever gotten sick or a disease from flea bites?

Additional Details My friend has a dog with fleas, and I have a lot of bites. Should I be worried?...

Jamie	Ever hear of the Black Plague?
Josh H	you can get milaria and lime dieses from flease and ticks. but in most cases it is a small rash with a flu like fealing with out the sore throat and temp
Answer King	The plague was spread by fleas that lived on rats. Good Luck.
Vanessa G	duh.. how could you not
Lucinda	yes
Katie	I hope not I have a couple flea bites right now
boo	yes
oceanlady580	yes i have had flu like symptoms and if they get worse fgot to your ER as west nile is in effect now
d the golf pro	yes
perturbed2007	remember the "black death"? was carried by fleas also nasty lil buggers.
elguzano1	This was copied from a website listed below. Hope it's helpful Flea bites are most common on areas of the body with tight clothing, especially the lower legs & around the waist. The itching of flea bites is caused by an allergic reaction. Sensitivity to flea bites varies between people; children often have especially severe reactions. In sensitive people, the bite is often surrounded by a "halo" of red, irritated skin. Household pets, cats & dogs, are the main carriers of fleas in the US. Pets & pets' bedding material should be kept clean to control fleas.