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New Jersey Probes Possible Locally Acquired Malaria Case in Morris County

State agencies, with CDC support, are tracing the infection's source.

Overview

  • The patient is a Morris County resident with no recent international travel, prompting scrutiny of potential in-state transmission.
  • NJDOH is leading the probe with support from the CDC, NJDEP, the New Jersey State Mosquito Control Commission, and the Morris County Mosquito Control Division.
  • If confirmed as locally acquired, this would be New Jersey’s first such malaria case since 1991.
  • Officials say the overall risk remains low and urge residents to use EPA-registered repellents, wear protective clothing, and eliminate standing water.
  • Anopheles mosquitoes are present in New Jersey and the state records about 100 travel-associated cases annually, while officials have not broadly disclosed the patient’s condition.