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Babesiosis

Frederick W. Nielson, MD Reviewed 06/2018
 


BASICS

DESCRIPTION

  • Rare tick-borne hemolytic disease caused by intraerythrocytic protozoan parasites of the genus Babesia

  • Infrequently reported outside the United States

    • Sporadic cases have been report...

DIAGNOSIS

HISTORY

  • The tick must remain attached for at least 24 hours before the transmission of B. microti occurs (1).

  • Travel/exposure history

  • Comorbidities (immunosuppression, chronic disease)

  • Fever (68...

TREATMENT

GENERAL MEASURES

  • In areas endemic for Lyme disease and ehrlichiosis, consider adding doxycycline (Vibramycin) 100 mg BID PO to empirically treat coinfection until serologic testing is complet...

ONGOING CARE

FOLLOW UP RECOMMENDATIONS

  • If left untreated, silent babesiosis may persist for months or years (2).

  • Of 139 hospitalized cases from 1982 to 1993:

    • 9 patients (7%) died.

    • 25% were admitted to t...

REFERENCES

1
1 Mylonakis E. When to suspect and how to monitor babesiosis. Am Fam Physician.  2001;63(10):1969–1974. {L-End} {L-End} [View Abstract on OvidMedline]
2
2 Vannier E, Krause PJ. Human...

ADDITIONAL READING

  • Curcio SR, Tria LP, Gucwa AL. Seroprevalence of babesia microti in individuals with lyme disease. Vector Borne Zoonotic Dis.  2016;16(12):737–743. {L-End} {L-End} [View Abst...

CODES

ICD10

B60.0 Babesiosis 

ICD9

088.82 Babesiosis 

SNOMED

  • 21061004 Babesiosis (disorder)

  • 73908004 Infection by Babesia microti (disorder)

  • 51613008 Infection by Babesia divergens (disorder)

  • 83937008 Infecti...

CLINICAL PEARLS

  • Ticks must remain in place for 24 hours to transmit infection—encourage daily “tick checks” if people are exposed in high-risk areas.

  • Most patients do not recall tick exposure, and incu...

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