GILEAD SCIENCES INC revenue for the last year amounted to 599.50 B MXN, the most of which — 408.90 B MXN — came from its highest performing source at the moment, Human Immunodeficiency Virus, the year earlier bringing 308.70 B MXN. The greatest contribution to the revenue figure was made by United States — last year it brought GILEAD SCIENCES INC 429.31 B MXN, and the year before that — 330.16 B MXN.