Printed in Great Britain Estimation of the Size of the HIV/AIDS Epidemic due to

epidemic due to blood transfusion in France International Journal of Epidemiology 1995; 24: 441-445. Background. This study presents estimates of the number of individuals contaminated by human immunodeficiency virus (HIV) via a blood transfusion received in France before the end of 1991 and those who have developed or will develop AIDS. Methods. The computer simulation model takes into account several possible hypotheses concerning the annual number of Infected blood donations collected before the Introduction of HIV screening In August 1985, those collected between August 1985 and December 1991 not excluded by the testing procedure due to the seroconversion period, the number of labile blood components elaborated from one donation, the 5-year mortality rate of blood recipients, and the incubation delay. Results. Results reproducing the evolution of the reported annual number of transfusion-associated AIDS cases wer