TUCSON, Ariz. (KGUN) — Mica Mountain High School and Andrada Polytechnic High School were awarded with the A+ School for Excellence Award from the Arizona Educational Foundation. 53 schools were ...

This means that people with O+ blood can donate to someone with A+, AB+, B+, or O+ blood, but not to people with O-, B-, AB-, or A- blood. O- is a universal donor, which means that a person with ...