Candidiasis is a frequent finding and colonisation of skin, oropharynx, and gut is common in SCID.
[doi.org]
[…] resistant to antibiotics, failure to thrive with abnormal growth curves, diarrhea, diaper rash, bronchitis, pneumonia, otitis media, liver abscess, morbilliform rash, oral candidiasis
[youtube.com]
Renal and biliary tract candidiasis, and invasive aspergillosis, are surprisingly rare but are seen occasionally.
[doi.org]