The article “Prevention of Malaria in Travelers” (May 15, 2012, page 973) contained an error in the dosage for primaquine in Table 2 (page 974). The dosage was incorrectly listed as 26.3 mg per day of primaquine for one to two days before travel through seven days after return. It should have been “30 mg per day of primaquine (52.6 mg of primaquine phosphate) for one to two days before travel through seven days after return. Note: 15 mg of primaquine = 26.3 mg of primaquine phosphate.” The online version of the article has been corrected.