Rida Shareef (from left), a biology junior and president of the American Medical Student Association; Angel Jose, a biology senior and MedLife Edinburg president; Jaqueline Salazar, a biomedical science junior; and Hannia Jimenez, a biology junior, promote donation, encouraging the university community, during a blood drive event Wednesday outside the Student Union on the Edinburg campus. Diego Vita/THE RIDERRuben, a Vitalant staff member, prepares a participant for a blood draw during a drive Wednesday outside the Student Union on the Edinburg campus. Diego Vita/THE RIDERAn ALYX blood collection machine, which analyzes blood samples, sits inside a Vitalant mobile donation unit during a blood drive Wednesday outside the Student Union on the Edinburg campus. Diego Vita/THE RIDERA Vitalant mobile donation unit and registration table set up during a blood drive, encouraging students and community members, Wednesday outside the Student Union on the Edinburg campus. Diego Vita/THE RIDERLewie, a Vitalant staff member, handles donated blood inside a mobile donation unit during a blood drive Wednesday outside the Student Union on the Edinburg campus. Diego Vita/THE RIDERChristian Espinoza (left), a biology postbaccalaureate student, and Summer Segovia, a biology postbaccalaureate student, hold signs encouraging students and community members to donate blood Wednesday outside the Student Union on the Edinburg campus. Diego Vita/THE RIDER