W. RahmanK. ChotivanichK. SilamutN. TanomsingA. HossainM. A. FaizA. M. DondorpR. J. MaudeChittagong Medical College HospitalMahidol UniversityMalaria Research Group (MRG)John Radcliffe Hospital2018-09-242018-09-242010-01-01Transactions of the Royal Society of Tropical Medicine and Hygiene. Vol.104, No.1 (2010), 78-80003592032-s2.0-70849123178https://repository.li.mahidol.ac.th/handle/20.500.14594/29291We describe a 32-year-old Bangladeshi male presenting with severe malaria caused by a mono-infection with Plasmodium malariae. Rosetting of infected and uninfected erythrocytes, a putative virulence factor in falciparum malaria, was observed in the blood slide. Severe disease caused by P. malariae is extremely rare. The patient made a rapid recovery with intravenous quinine treatment. © 2009 Royal Society of Tropical Medicine and Hygiene.Mahidol UniversityImmunology and MicrobiologyMedicineArticleSCOPUS10.1016/j.trstmh.2009.06.014