Case Report and Epidemiological Investigation of Healthcare-associated Plasmodium falciparum Malaria Transmission in Westchester County, New York—2023 - Summary - MDSpire

Case Report and Epidemiological Investigation of Healthcare-associated Plasmodium falciparum Malaria Transmission in Westchester County, New York—2023

  • By

  • Jennifer L White

  • Karen Southwick

  • Susan Madison-Antenucci

  • Nicholas P Piedmonte

  • Sujoy Gayen

  • Brooke Clemons

  • Monica Quinn

  • Kelly Barrett

  • P Bryon Backenson

  • Mike Antwi

  • Sally Slavinski

  • Ellen Lee

  • Ada Huang

  • Kevin Smith

  • Elissa Guzzardi

  • Jennifer C Hunter

  • Kimberly L McKinney

  • Kimberly E Mace

  • Alison D Ridpath

  • Seymour Williams

  • Joel L N Barratt

  • David Jacobson

  • Edwin Pierre-Louis

  • Marko Bajic

  • Julia Kelley

  • Peter D McElroy

  • Brian H Raphael

  • Alan Bulbin

  • December 10, 2025

  • 0 min

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Objective:

To urgently identify the source of a locally acquired Plasmodium falciparum malaria infection and assess the risk of ongoing transmission in Westchester County, New York.

Key Findings:
  • The patient had no recent travel history to malaria-endemic areas, indicating a local source.
  • Blood-borne transmission in a healthcare setting was implicated as the likely source of infection, highlighting potential lapses in infection control.
  • No mosquito-transmitted malaria cases were identified in New York, reinforcing the need for vigilance.
Interpretation:

The investigation suggests that healthcare-associated transmission of malaria can occur, emphasizing the need for stringent infection control measures in healthcare settings and proactive monitoring.

Limitations:
  • The exact mechanism of blood-borne transmission remains unknown, which complicates prevention efforts.
  • No additional cases were identified, limiting the understanding of potential transmission dynamics and public health response.
Conclusion:

Prompt investigation of locally acquired malaria cases is crucial for identifying sources and preventing further infections, underscoring the importance of ongoing surveillance and public health readiness.

Original Source(s)

Case Report and Epidemiological Investigation of Healthcare-associated Plasmodium falciparum Malaria Transmission in Westchester County, New York—2023

  • by Jennifer L White, Karen Southwick, Susan Madison-Antenucci, Nicholas P Piedmonte, Sujoy Gayen, Brooke Clemons, Monica Quinn, Kelly Barrett, P Bryon Backenson, Mike Antwi, Sally Slavinski, Ellen Lee, Ada Huang, Kevin Smith, Elissa Guzzardi, Jennifer C Hunter, Kimberly L McKinney, Kimberly E Mace, Alison D Ridpath, Seymour Williams, Joel L N Barratt, David Jacobson, Edwin Pierre-Louis, Marko Bajic, Julia Kelley, Peter D McElroy, Brian H Raphael, Alan Bulbin

  • December 10, 2025

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