Babesia. There are >100 species of this intracellular parasite. The disease caused by Babesia known as Babesiosis The disease distribute all over the world where there is tick available. Babesia microti is the predominant human pathogen, endemic to the NE and Midwest.
The parasites reproduce by binary fission inside the R.B.Cs, after transmission with the tick saliva.
Fever, sweating, chills, headache, anemia, jaundice, malaise, haemoglobinuria & Weakness.