If you are considering Microbiology/Public Health, you are looking at Graduate school after Undergrad. Going to a Cal State will not only save you some money for Graduate school but a CSU will prepare you well for your intended major. I will be blunt, you obviously are an intelligent student since you were able to achieve a 1430 on your SAT, but beggars cannot be choosers when it comes to college admissions. Your GPA at the moment speaks for itself so you hopefully have 2 safety schools on your list or you could be completely shut out.
Best of luck and apply widely.
FYI, I received my Microbiology degree from Cal Poly Pomona and had an excellent education and am doing very well in life.