The effect of ethanol on the in vitro growth of the malaria parasite Plasmo
dium falciparum was investigated. 17 mM (0.08%) and 85 mM (0.39%) ethanol w
ere added to parasite cultures and growth was determined for six days. A si
gnificant growth inhibition for both ethanol concentrations was observed on
each day. It reached 65% for 85 mM ethanol after six days of incubation. M
alarial parasites are strongly inhibited by ethanol concentrations which ar
e attainable by extensive alcohol consumption.