Feces test and viral/bacterial infection

[Tiel]

Hey Parrot Mom/Dad community!
After having a talk with my avian vet I decided to deliver a feces sample to his lab, but I have a general question that I forgot to ask my vet:
Can feces determine infections such as chlamydia? Or do you specifically require a blood sample for that? I really doubt that my bird has a parasite problem (although It'd never hurt to test him regardless) but I was wondering whether I can feel assured of no viral/bacterial infections with only a feces sample.

Thank you in advance!!

 

[Laurasea]

If tgey culture yes can determine bacteria , i think can also send out fir some virus, can do gram stain see if yeast overgrowth, ir bacteria over growth.