Volume 26, Number 8—August 2020
Synopsis
Rise in Babesiosis Cases, Pennsylvania, USA, 2005–2018
David Ingram
and Tonya Crook
and Tonya Crook
Table 1
Centers for Disease Control and Prevention criteria for diagnosis of confirmed cases of babesiosis, 2011*
| Laboratory criteria for diagnosis | Clinical criteria for diagnosis |
|---|---|
| Identification of intraerythrocytic Babesia organisms by light microscopy in a Giemsa, Wright, or Wright-Giemsa–stained blood smear; OR detection of Babesia microti DNA in a whole blood specimen by PCR; OR detection of Babesia spp. genomic sequences in a whole blood specimen by nucleic acid amplification; OR Isolation of Babesia organisms from a whole blood specimen by animal inoculation. | Objective: >1 of the following: fever, anemia, or thrombocytopenia |
| Subjective: >1 of the following: chills, sweats, headache, myalgia, or arthralgia. |
*Includes cases that have confirmatory laboratory results and meet >1 of the objective or subjective clinical evidence criteria, regardless of the mode of transmission (can include clinically manifest cases in transfusion recipients or blood donors). Full case definition available at https://wwwn.cdc.gov/nndss/conditions/babesiosis/case-definition/2011.
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