7 month old sucked on toilet - help

I sat my 7 month old down on the bathroom floor while I was sorting out a bath for her and her sister. I’m not sure how long I was looking away but it couldn’t have even been 20 seconds. I turn around and she had managed to get to the toilet, pull herself up and was sucking on the side of toilet seat😭😭😭😭😭😭

I pulled her off and tried to rinse out her mouth (although I’m sure that did nothing to get rid of the bacteria). She’s already ill with what seems to be a viral infection & now I’m terrified she’s going to get worse.

I haven’t cleaned the toilet for a week so I’m not too worried about chemicals, just the germs.

I feel absolutely horrible. Has this happened to anyone else? Can she get really ill because of this?