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Babesia microti

Babesia microti. Michael Lehrke. Babesia microti Classification. Phylum Apicomplexa Class Aconoidasida Order Piroplasmida Family Babesiidae Genus Babesia Species microti. Babesia microti. Distribution. Found worldwide

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Babesia microti

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  1. Babesia microti Michael Lehrke

  2. Babesia microti Classification • Phylum Apicomplexa • Class Aconoidasida • Order Piroplasmida • Family Babesiidae • Genus Babesia • Species microti

  3. Babesia microti

  4. Distribution • Found worldwide • In the US it is particularly prevalent in the northeastern and Midwestern states • Yes, Minnesota and Wisconsin!! • Some notable areas are Martha’s Vineyard, Nantucket Island, Cape Cod, and Long Island

  5. Disease • Causes Babesiosis • Symptoms: • High fever • Muscle aches • Chills • Fatigue • Headache • Loss of appetite • Anemia

  6. Hosts • Vector: Deer ticks [Ixodes scapularis, black-legged ticks] • Definitive Host: Ticks • Intermediate Host:White-footed mouse, deer, cattle, horses, other mammals, (humans) • Reservoir Host: Peromyscus leucopus • Humans are usually a dead-end host

  7. Life cycle

  8. Diagnosis • Suspicion • Persistent fevers and hemolytic anemia occurring • Blood smear, visualizing “Maltese cross formations” • Not in Malaria • Multiple smears (infects about 1% of red blood cells) • Serological testing (IgG and IgM) • PCR • Blood counts

  9. Treatment • Most people do not require treatment • Treated 7-10 days using combination antimicrobial drugs • Atovaquone and Azithromycin • Clindamycin and Quinine

  10. Prevention • Avoid tick exposure • Check for ticks • Apply diethyltoluamide (DEET) • Tick elimination • Acaricide-control ticks of domestic animals

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