Journal of Clinical Virology 51 (2011) 83–85
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Journal of Clinical Virology
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Short communication
Seroprevalence of HIV-1, HBV, HTLV-1 and Treponema pallidum among pregnant
women in a rural hospital in Southern Ethiopia
José M. Ramos
a,b,∗
, Carlos Toro
c
, Francisco Reyes
b
, Aránzazu Amor
c
, Félix Gutiérrez
a
a
Infectious Diseases Unit, Hospital General Universitario de Elche, Alicante, Spain
b
Gambo General Rural Hospital, Shashamane, Ethiopia
c
Service of Microbiology, Hospital Carlos III, Madrid, Spain
article info
Article history:
Received 13 October 2010
Received in revised form
31 December 2010
Accepted 17 January 2011
Keywords:
HIV
Hepatitis B virus
HTLV
Treponema pallidum
Pregnant women
abstract
Background: Human immunodeficiency virus type 1 (HIV-1), hepatitis B virus (HBV), human T-cell lym-
photropic virus type 1 (HTLV-1) and Treponema pallidum represent major public health problems in
sub-Saharan countries. These infections can be transmitted from mother to children and may cause
severe morbidities in their offspring. Ethiopia is among the countries where HIV-1, HBV and T. pallidum
infections are highly prevalent. However, information on seroprevalence of these infections among ante-
natal care attendees is very scarce and the majority of studies have been conducted in pregnant women
from urban areas.
Objectives: To determine the seroprevalence of HIV-1, HBV, HTLV-1 and T. pallidum infections among
pregnant women in a rural hospital in Southern Ethiopia.
Study design: A cross-sectional study was conducted among consecutive pregnant women attending a
mother and child clinic in August 2008.
Results: A total of 165 pregnant women were included. The seroprevalence of HIV-1 was 1.8% (95%
confidence intervals [CI]: 0.6–5.2%), and for HBV (HBsAg seropositivity) was 6.1% (95% CI: 3.3–10.8%).
Co-infection with HIV-1 and HBV was detected in one patient (prevalence: 0.6%; 95% CI: 0.1–3.4%). No
cases of HTLV-1 infection and syphilis were found (95% CI: 0–2.3%).
Conclusions: A far from negligible percentage of pregnant women from rural areas harbour HBV, and
to a lesser extent, HIV-1 infections. Continuing efforts to strengthen the existing health education pro-
gram and comprehensive screening for all pregnant women are necessary to prevent mother-to-child
transmission of HBV and HIV-1.
© 2011 Elsevier B.V. All rights reserved.
1. Background
Human immunodeficiency virus type 1 (HIV-1), hepatitis B
virus (HBV), human T-cell lymphotropic virus type 1 (HTLV-1)
and Treponema pallidum represent major public health problems
throughout the world. These infections can be transmitted from
mother to children and may cause severe morbidities in their
offspring. Since the early 1990s, antenatal clinics have been the pri-
mary data source from which estimates of the prevalence have been
done to estimate the national rate of HIV-1 infection and tracking
the epidemic in Ethiopia. These data have shown a different dis-
tribution of HIV-1 infection between pregnant women from major
urban areas in comparison to those from rural localizations (∼12%
∗
Corresponding author at: Infectious Diseases Unit, Hospital General
Universitario de Elche, Camí L’Almazara 11, Elche 03203, Alicante, Spain.
Tel.: +34 966616754; fax: +34 966616756.
E-mail address: jramosrincon@yahoo.es (J.M. Ramos).
vs. ∼5%) and a decline in the HIV-1 seroprevalence in this popu-
lation in the last decade.
1
In contrast, data about seroprevalence
of other blood borne-virus infections among pregnant women are
scarce in this country. Only one report has analyzed HBV infection
in Ethiopia, observing that around 7% of pregnant women carry
the surface HBV antigen (HBsAg).
2
There is no information about
the rate of HTLV-1 infection in women attending antenatal clinics,
despite this virus circulating in Ethiopia.
3
Finally, several studies
have shown a marked decrease in the seroprevalence of T. pal-
lidum among pregnant women within the last decade with a current
rate around 2%. However, most of these studies were performed in
women attending antenatal clinics from urban settings and data on
T. pallidum seroprevalence in rural areas are very limited.
2,4,5
Screening of mother-to-child HIV-1, HBV, HTLV-1 and T. pal-
lidum transmission infections are one of the main objectives to
prevent their spread. However, efficient surveillance networks are
often too costly and accessibility to diagnosis and treatment facil-
ities in sub-Saharan African countries is very limited, notably for
people residing in rural settings. To know their prevalence among
1386-6532/$ – see front matter © 2011 Elsevier B.V. All rights reserved.
doi:10.1016/j.jcv.2011.01.010