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Malaria Resurfaces in US After Two Decades

10/9/2025

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Summary

Story summary

Malaria returned to the United States in 2023 after two decades, with ten acquired cases in Florida, Texas, Maryland, and Arkansas from mosquito bites.
Public health officials contained all cases quickly; nine patients were hospitalized but recovered.
The outbreak involved Plasmodium vivax and Plasmodium falciparum, with distinct genetic strains identified, and DNA sequencing aided tracking.

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Story summary

Malaria returned to the United States in 2023 after two decades, with ten acquired cases in Florida, Texas, Maryland, and Arkansas from mosquito bites.
Public health officials contained all cases quickly; nine patients were hospitalized but recovered.
The outbreak involved Plasmodium vivax and Plasmodium falciparum, with distinct genetic strains identified, and DNA sequencing aided tracking.