hi this is from the uk's nhs. you can catch chlamydia through unprotected vaginal anal or oral sex. it can also be passed on if you share sex toys and don’t wash them or cover them with a condom each time they’re used. it’s unclear whether chlamydia can be spread if infected semen or vaginal fluid on your fingers is transferred to another person’s genitals or by rubbing female genitals together. you can’t catch chlamydia from kissing or sharing facilities such as toilets or towels with someone who has the infection. so as for 3 month old very dry clothing if there was some on them they would not be alive now. but if you do have a re-occurrence then that's all part of the chlamydia game it just loves to come back again and again sometimes the length could be up to 15 years or longer. hope this helps you. good luck
can you re-catch chlamydia from unwashed clothing? . specifically i am at university and before summer term ended i caught chlamydia (i only found this out mid-summer) and i left some clothing behind such as unwashed pyjama bottoms. i've returned after having been treated and testing clean and without thinking i wore the bottoms. i feel like i've had persistent symptoms which i can't seem to shake and don't seem to be thrush could i have caught chlamydia back from the clothing/towels even if it's been over 3 months since they were worn?