Update on occult hepatitis B virus infection

Table 3 Prevalence of occult hepatitis B infection among healthcare workers

Ref.	Country	No. of samples	No. of OBI cases	No. of cases positive for anti-HBc	Year
Borzooy et al[188]	Iran	120	4 (3.3)	0 (0)	2015
Chiarakul et al[189]	Thailand	36	4 (11)	4 (100)	2011
Slusarczyk et al[185]	Poland	961	6 (4)	4 (100%)	2012
Shim et al[190]	Korea	334	0	0	2011
Sukriti et al[191]	India	120	6 (5)	6 (100)	2008
Yen et al[192]	Taiwan	250	16 (6.4)	13 (81)	2005

OBI: Occult hepatitis B infection. HBc: Hepatitis B core.