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Volume 19, Number 1—January 2013
Letter

Seroprevalence of Crimean-Congo Hemorrhagic Fever Virus, Bulgaria

Iva ChristovaComments to Author , Teodora Gladnishka, Evgenia Taseva, Nikolay Kalvatchev, Katerina Tsergouli, and Anna Papa
Author affiliations: Author affiliations: National Center of Infectious and Parasitic Diseases, Sofia, Bulgaria (I. Christova, T. Gladnishka, E. Tasseva, N. Kalvatchev); Aristotle University of Thessaloniki, Thessaloniki, Greece (K. Tsergouli, A. Papa)

Main Article

Table

Univariate and multivariate regression analysis of CCHFV seropositivity in human population, Bulgaria*

Variable No. (%) IgG positive, n = 28 No. (%) IgG negative, n = 990 Univariate analysis
Multivariate analysis
OR (95% CI) p value OR (95% CI) p value
Age, y 1.00 (0.99–1.03) 0.494

Median

 46 48

Range

 20–83 2–89
Sex 0.456

M

 16 (3.1) 495 (96.9) 1.33 (0.62–2.85)

F

 12 (2.4) 495 (97.9) Ref
Tick bite <0.001 <0.001

Yes

 15 (9.3) 147 (90.7) 6.62 (3.09–14.19) 5.40 (2.47–11.84)

No

 13 (1.5) 843 (98.5) Ref
Animal contact 0.253

Yes

 11 (3.7) 290 (96.3) 1.56 (0.72–3.38)

No

 17 (2.4) 700 (97.6) Ref
Farming 0.001 0.012

Yes

 13 (6.7) 182 (93.3) 3.85 (1.80–8.23) 2.76 (1.25–6.08)

No

 15 (1.8) 808 (98.2) Ref

*CCHFV, Congo-Crimean hemorrhagic fever; OR, odds ratio; Ref, reference.

Main Article

Page created: December 20, 2012
Page updated: December 20, 2012
Page reviewed: December 20, 2012
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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