Nested case-control study on risk factors for opportunistic infections in patients with inflammatory bowel disease

Table 1 Opportunistic infections in inflammatory bowel disease patients evaluated between January 1, 2017 and December 31, 2018

Organism	Number of UC patients	Number of CD patients
Mycobacterium tuberculosis	1	0
Epstein-Barr virus	10	5
Cytomegalovirus	3	1
Hepatotropic virus	0	1
Clostridium difficile	11	13
Adenovirus	0	3
Syncytial virus	5	11
Coxsaccie virus	1	2
Herpes simplex virus	3	2
Herpes zoster	0	1
Mold	6	3
Candida albicans	2	0
Streptococcus	1	2

Three patients were co-infected with Epstein-Barr virus (EBV) and respiratory syncytial virus (S virus). Two patients were co-infected with EBV and mold. One patient was co-infected with EBV and Clostridium difficile (CDI). One patient was co-infected with EBV and cytomegalovirus (CMV). One patient was co-infected with EBV and herpes simplex virus (HSV). One patient was co-infected with EBV, S virus, and Coxsaccie virus (C virus). One patient was co-infected with mold and CDI. One patient was co-infected with adenovirus and S virus. One patient was co-infected with adenovirus and C virus. One patient was co-infected with CDI and C virus. One patient was co-infected with CDI and S virus. One patient was co-infected with CDI, mold, and Streptococcus. UC: Ulcerative colitis; CD: Crohn’s disease.