We report nosocomial Plasmodium falciparum malaria in Spain, which was confirmed microbiologically and genomically. Transmission occurred through insufficiently disinfected reusable syringe lead shielding during thyroid scintigraphy. Genomic analysis showed high similarity between isolates from index and source cases. Strict biosafety measures are needed in healthcare settings to prevent malaria transmission.
Keywords: Plasmodium falciparum; Spain; acquired malaria; malaria; parasites; parenteral transmission; vector-borne infections.