Vaccination Rate

Wondering which frats/sororities have the highest vaccination rate. I know not many people at SMU in greek life care, but I am someone who does. I was hearing a lot of SAE and Thetas are anti-vax so was wondering if their parties/exchanges are safe to be at. Can someone confirm if this is true? Heard SAE's last party was a super spreader event, I did not attend if you are wondering