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Seroprevalence of HIV and HTLV in a representative sample of the Spanish population

Published online by Cambridge University Press:  03 November 2000

J. CASTILLA
Affiliation:
National Centre for Epidemiology, Centro Nacional de Epidemiología, Sinesio Delgado, 6, Madrid 28029, Spain
I. PACHÓN
Affiliation:
National Centre for Epidemiology, Centro Nacional de Epidemiología, Sinesio Delgado, 6, Madrid 28029, Spain
M. P. GONZÁLEZ
Affiliation:
National Microbiology Centre, Carlos III Institute of Public Health, Madrid
C. AMELA
Affiliation:
National Centre for Epidemiology, Centro Nacional de Epidemiología, Sinesio Delgado, 6, Madrid 28029, Spain
L. MUÑOZ
Affiliation:
National Microbiology Centre, Carlos III Institute of Public Health, Madrid
O. TELLO
Affiliation:
National Centre for Epidemiology, Centro Nacional de Epidemiología, Sinesio Delgado, 6, Madrid 28029, Spain
I. NOGUER
Affiliation:
Secretariat for the National AIDS Plan, Ministry of Public Health and Consumer Affairs, Madrid
F. DE ORY
Affiliation:
National Microbiology Centre, Carlos III Institute of Public Health, Madrid
P. LEÓN
Affiliation:
National Microbiology Centre, Carlos III Institute of Public Health, Madrid
M. ALONSO
Affiliation:
National Microbiology Centre, Carlos III Institute of Public Health, Madrid
E. GIL
Affiliation:
Deputy General Director for Epidemiology, Education and Promotion, Ministry of Public Health and Consumer Affairs, Madrid
A. GARCÍA-SÁIZ
Affiliation:
National Microbiology Centre, Carlos III Institute of Public Health, Madrid
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Abstract

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HIV and HTLV seroprevalence was determined by means of unlinked anonymous testing of 2144 sera, originally obtained from primary care patients by representative sampling of the Spanish population aged 15-39 years in 1996. HIV-1 seroprevalence was 4·3 per 1000 population in the 15–39 years age group [95% confidence interval (CI), 1·5–10·7] and 5·6 per 1000 (95% CI, 1·8–15·3) in the 20–39 years age group. Seroprevalence proved higher in males and urban residents. No antibodies to HIV-2 and HTLV-I were detected in any of the sera studied. However, presence of antibodies to HTLV-II was confirmed in one serum sample, while HTLV seroreactivity, though detected in another, could not be typed. The two HTLV-positive results equated to a seroprevalence of 1·9 per 1000 in the 20–39 years age group (95% CI, 0·3–8·6). HIV-1 seroprevalence was consistent with previous estimates yielded by back-calculation. The level of HTLV seroprevalence found suggests endemicity.

Type
Research Article
Copyright
© 2000 Cambridge University Press