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Babesia Infection from Blood Transfusion
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The page below is a sample from the LabCE course
Parasitology Case Studies: Protozoa in Blood (by ASCLS)
. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.
Learn more about Parasitology Case Studies: Protozoa in Blood (by ASCLS) (online CE course)
Babesia Infection from Blood Transfusion
58-year-old man with metastatic esophageal cancer was admitted to a hospital for evaluation of hematemesis and normocytic anemia
He had hypotension without fever, joint swelling, headache, or rash
His hemoglobin was 8.4 mg/dL, he had a platelet count of 71,000/mm3, and a leukocyte count of 3.5 × 10
3
/mm
3
with 19% bands
On a manual differential count
Babesia spp
. was identified
PCR analysis was positive and highly specific for
B. microti
DNA
He was treated with azithromycin and atovaquone for 7 days, given 2 blood transfusions for anemia, and discharged in stable condition
He had received 6 units of packed red blood cells and 2 units of fresh frozen plasma over several visits beginning a month earlier
The probable donor was a 49-year-old male who lived in Maine near an area where the tick is found and babesiosis has been diagnosed
The donor reported an illness 4 months before donating blood but was not tested for
Babesia spp
.
He was asymptomatic at the time of donation
There is no FDA approved test for
Babesia spp.
in blood products
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