Yes it can be done with or without symptoms but testing will still know if its a carrier and not sure where to take it as any bird i have with bubbles got culled only ever had a problem when buying adults. Now that I dont buy adults never had an issue again
Ive dealth with mg before with a lav orp rooster never even got it home as i heard it wheezing in the box. Now id rather buy from hatcheries and raise them myself as people lie