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Babesia species are in the phylum Apicomplexa, which also has the protozoan parasites that cause malaria, toxoplasmosis, and cryptosporidiosis. [5] Four clades of Babesia species infect humans. The main species in each clade are: [citation needed] B. microti (< 3 μm) B. duncani
Babesia species infect livestock worldwide, wild and domestic vertebrate animals, and occasionally humans, where they cause the disease babesiosis. [ 9 ] [ 7 ] In the United States, B. microti is the most common strain of the few that have been documented to cause disease in humans.
Babesia microti is a parasitic blood-borne piroplasm transmitted by deer ticks. B. microti is responsible for the disease babesiosis , a malaria -like zoonosis which causes fever, hemolytic anemia caused by hemolysis , and enlarged spleen.
Babesia divergens is an intraerythrocytic parasite, transmitted by the tick Ixodes ricinus. [1] It is the most common cause of human babesiosis . [ 2 ] It is the main agent of bovine babesiosis , or "redwater fever", in Europe.
The wreckage of a Delta Air Lines-operated CRJ900 aircraft lays on the runway after a plane crash at Toronto Pearson International Airport. - Cole Burston/Reuters
Petite and energetic, widow and philanthropist Irene Silverman was 82 when she mysteriously vanished from her multi-million-dollar townhouse on Manhattan's Upper East Side in the summer of 1998.
"I think I was only there the first day. Maybe I made it to day two," she added. "We did the read-throughs and they staged it, and then they're like, we better get somebody else."
Babesia bovis is transmitted transovarially, from the female ticks to the eggs, and can remain resident in tick populations for up to four years without infecting a vertebrate host. More commonly, a larval tick feeds upon a domestic cow, an African buffalo or a water buffalo , releasing the parasites into the animal's bloodstream.