Hepatitis B Virus Infection in Tanzania: Current Status and Challenges

Table 2

Hepatitis B prevalence in Tanzania among different population groups.

Population type		Study	Year	Region/city	Prevalence
All age groups		Pellizzer et al. [8]	1994	Dar es Salaam	4.4%
Adults		Miller et al. [7]	1998	Dar es Salaam	6.0%
Children		Muro et al. [9]	2013	Kilimanjaro	4.2%
Children		Meschi et al. [10]	2010	Iringa	4.3%
Children		Meschi et al. [10]	2010	Pemba	1.8%
Blood donors	All	MoHCDGEC [17]	2016	Nationwide	6.2%
	All	Hasegawa et al. [14]	2006	Dar es Salaam	4.8%
	All	Matee et al. [38]	1999	Dar es Salaam	11%
	All	Jacobs et al. [20]	1997	Mwanza	11.2%
	Replacement donors	Matee et al. [18]	2006	Dar es Salaam	9.5%
	Voluntary donors	Matee et al. [18]	2006	Dar es Salaam	7.2%
Health care workers		Mueller et al. [29]	2015	Mwanza	7.0%
Pregnant women		Manyahi et al. [24]	2017	Dar es Salaam	8.0%
		Mirambo et al. [26]	2016	Mwanza	3.8%
		Rashid et al. [39]	2014	Dar es Salaam	3.9%
		Msuya et al. [25]	2006	Kilimanjaro	4.2%
		Pellizzer et al. [8]	1994	Dar es Salaam	4.3%
PWID		Mohammed et al. [40]	2006	Zanzibar	2.1%
Coinfections
HBV/HIV	Adults	Kilonzo et al. [41]	2017	Mwanza	6.6%
	Adults	Ramírez-Mena et al. [42]	2016	Morogoro	7.3%
	Adults	Hawkins et al. [43]	2013	Dar es Salaam	6.2%
	Children	Muro et al. [9]	2013	Kilimanjaro	2.9%
	Children	Telatela et al. [44]	2007	Dar es Salaam	1.2%
HBV/HCV	PWID	Mohammed and Salim [45]	2017	Dar es Salaam	9.8%
	HIV-infected adults	Nagu et al. [46]	2008	Dar es Salaam	3.9%
	PWID	Mohammed and Salim [40]	2006	Zanzibar	5.4%
HEV	Adults	Miller et al. [7]	1998	Dar es Salaam	0%