Passive surveillance for malaria cases was conducted in Yunnan Province, China, along the China-Myanmar border. Infection with Plasmodium vivax and P. falciparum protozoa accounted for 69% and 28% of the cases, respectively. Most patients were adult men. Cross-border travel into Myanmar was a key risk factor for P. falciparum malaria in China.
Keywords: China; Myanmar; Plasmodium falciparum; Plasmodium vivax; Yunnan Province; age distribution; clinical malaria; cross-border travel; malaria; parasite; protozoa; sex distribution; vector-borne infections.