<i>Notes from the Field:</i> Locally Acquired Mosquito-Transmitted (Autochthonous) <i>Plasmodium falciparum</i> Malaria — National Capital Region, Maryland, August 2023
Monique Duwell, Timothy DeVita, David Torpey, Jenny Chen, Robert A. Myers, Kimberly E. Mace, Alison Ridpath, Wycliffe Odongo, Brian H. Raphael, Audrey Lenhart, Jon Eric Tongren, Stephen N. Stanley, David Blythe
Abstract
phpa/OIDEOR/CIDSOR/Pages/diseaseconditions-count-rates.aspx malaria exist in many areas in the United States (2).Locally acquired mosquito-transmitted (i.e., autochthonous) cases have not been identified since 2003; however, these imported cases represent a potential source of infection.In mid-2023, eight autochthonous malaria cases (Plasmodium vivax) were identified in Florida and Texas (3); in both states, the autochthonous cases occurred in the vicinity of an imported malaria case. Investigation and OutcomesOn August 6, a previously healthy resident of the Maryland National Capital Region was evaluated for a 7-day history of fever, malaise, and myalgias.In the months preceding symptom onset, the patient reported daily walks near home and an occurrence of a tick attachment but no international travel, blood transfusions, intravenous drug use, or other potential exposures to bloodborne pathogens.