These children may suffer from enlarged tonsils, adenoids and cervical lymphadenopathy. Various aetiological factors which contribute to development of PKC are: Bacteria: Mycobacterium tuberculosis. Staphylococcus aureus. Propionibacterium acnes. [nhp.gov.in]

Entamoeba histolytica. Fungi: Candida albicans. Coccidioides immitis. Human leukocyte antigen (HLA) subtypes: A26. B35. DR8. Meibomitis: Phlectenular keratitis may be associated with meibomitis ( Suzuki T, Mitsushi Y, Yoichiro S, et al. [nhp.gov.in]

Coccidioides immitis. Human leukocyte antigen (HLA) subtypes: A26. B35. DR8. Meibomitis: Phlectenular keratitis may be associated with meibomitis ( Suzuki T, Mitsushi Y, Yoichiro S, et al. [nhp.gov.in]

Candida albicans and parasites (Ascaris lumbricoides, Ancylostoma duodenale). Clinical Features: Symptoms: foreign body sensation, photophobia, redness, irritation and tearing. [dro.hs.columbia.edu]