babesiosis another tick borne disease

Babesiosis was once only seen in animals, especially cattle, when it was called Red water fever. Humans were once able to fight it off easily, unless they had AIDS or had had their spleen removed
Now it's another tick borne disease which is not properly tested for, and which could be an undiagnosed factor in patients sick after tick bites.

Babesiosis-Induced Acute Kidney Injury With Prominent Urinary Macrophages.

Luciano RL, Moeckel G, Palmer M, Perazella MA.
American Journey of Kidney Diseases, online before print, 2013 May 2,
pii: S0272-6386(13)00674-4.

http://dx.doi.org/10.1053/j.ajkd.2013.02.376

Abstract

Babesia is an obligate intracellular erythrocyte parasite 
that can infect humans. Severe symptomatic disease from 
massive hemolysis and multiorgan system failure, including 
acute kidney injury (AKI), occurs. Acute tubular injury from 
a combination of volume depletion and heme pigment toxicity 
from profound hemolysis is the most common cause of AKI.

We present a case of severe babesiosis complicated by 
dialysis-requiring AKI with the unique finding of large 
macrophages containing engulfed erythrocyte fragments in 
urine sediment. This urinary finding raised the possibility 
of another diagnosis distinct from acute tubular injury. 
Subsequent kidney biopsy demonstrated infection-associated 
acute interstitial nephritis.