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Increasing Babesiosis in Southeastern Pennsylvania, 2008-2017

Hans H Liu1, Lisa Cushinotto2, Olarae Giger3

  • 1Department of Medicine, Main Line Health System, Bryn Mawr, Pennsylvania.

Open Forum Infectious Diseases
|March 22, 2019
PubMed

Insights

Babesiosis cases in Pennsylvania are rising, with a significant increase observed in southeastern Pennsylvania. This rise in tick-borne illness frequency suggests multiple contributing factors require further investigation.

Area of Science:

  • Medical Entomology
  • Infectious Diseases
  • Public Health

Background:

  • Tick-borne illnesses are a growing public health concern, often underreported nationally.
  • Babesiosis, a tick-borne disease, has historically had limited reported cases in Pennsylvania.

Purpose of the Study:

  • To document the incidence of babesiosis in a southeastern Pennsylvania healthcare system.
  • To identify trends and potential causes for an observed increase in babesiosis cases.

Main Methods:

  • Retrospective case review across a 4-hospital system in southeastern Pennsylvania.
  • Analysis of babesiosis case counts from 2008 to 2015.

Main Results:

  • Babesiosis case frequency in the study system was consistently low (≤7 cases/year) from 2008 to 2014.
  • A notable increase to 26 reported cases was observed in 2015.
  • This represents a significant rise in the reported incidence of babesiosis.

Conclusions:

  • The incidence of babesiosis in southeastern Pennsylvania has markedly increased.
  • Multiple factors likely contribute to this observed rise in tick-borne illness.
  • Further epidemiological studies are warranted to determine the specific causes.
Keywords:
BabesiaPennsylvaniaacorn productionclimate impacttick-borne diseases

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