Beginning in 2023, we observed increased Plasmodium vivax malaria cases at an institution in Los Angeles, California, USA. Most cases were among migrants from China who traveled to the United States through South and Central America. US clinicians should be aware of possible P. vivax malaria among immigrants from China.
Keywords: Anopheles mosquitoes; China; Ecuador; Malaria; Mexico; Panama; Plasmodium vivax; United States; emigration and immigration; hospitals; parasites; vector-borne infections; zoonoses.