Gilead Sciences is a biotech company with the main focus on fighting HIV/AIDS

Gilead is the second largest biotech company in the world after Amgen. 67% of sales of Gilead comes from HIV/AIDS but they have sales in liver diseases, Hematology/oncology and Inflammation and respiratory too. One of their most famous products is Tamiflu which was used in 2009 during the H1N1 pandemic.