STREP THROAT AFTER GIVING HEAD 😱😰

So a couple of days ago, my boyfriend and I got intimate and he ate me out. The next day he woke up feeling sick and today he went to the doctors and said he had an infection. Could this be because of me? I’m a virgin and It’s been more than a year since i’ve done something intimate with someone so i know it’s not STDs but i’m still tripping that maybe i was the cause of it... what do you guys think? please help!!