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Journal of Clinical Microbiology, 05 1997, 1122-1130, Vol 35, No. 5
F Elgh, A Lundkvist, OA Alexeyev, H Stenlund, T Avsic-Zupanc, B Hjelle, HW Lee, KJ Smith, R Vainionpaa, D Wiger, G Wadell and P Juto
Worldwide, hantaviruses cause more than 100,000 human infections annually.
Rapid and accurate methods are important both in monitoring acute
infections and for epidemiological studies. We and others have shown that
the amino termini of hantavirus nucleocapsid proteins (Ns) are sensitive
tools for the detection of specific antibodies in hantavirus disease.
Accordingly, we expressed truncated Ns (amino acids 1 to 117) in
Escherichia coli from the five hantaviruses known to be pathogenic to man;
Hantaan (HTN), Seoul (SEO), Dobrava (DOB), Sin Nombre (SN), and Puumala
(PUU) viruses. In order to obtain pure antigens for use in an enzyme-linked
immunosorbent assay (ELISA), the recombinant proteins were purified by
polyhistidine-metal chelate affinity chromatography. Polyclonal animal
antisera and a panel of serum specimens from hantavirus-infected
individuals from Scandinavia, Slovenia, Russia, Korea, China, and the
United States were used to evaluate the usefulness of the method. With both
human and animal sera, it was possible to designate the antibody response
into two groups: those with HTN, SEO, and DOB virus reactivity on the one
hand and those with SN and PUU virus reactivity on the other. In sera from
Scandinavia, European Russia, and the United States, the antibody response
was directed mainly to the PUU and SN virus group. The sera from Asia
reacted almost exclusively with the HTN, SEO, and DOB types of viruses.
This was true for both the immunoglobulin M (IgM) and IgG antibody
responses, indicating that this type of discrimination can be done during
the acute phase of hantavirus infections. Both the HTN, SEO, and DOB virus
and the PUU and SN virus types of antibody response patterns were found in
patients from the Balkan region (Solvenia).
Copyright © 1997 by the American Society for Microbiology. All rights reserved.
Serological diagnosis of hantavirus infections by an enzyme-linked immunosorbent assay based on detection of immunoglobulin G and M responses to recombinant nucleocapsid proteins of five viral serotypes
Department of Virology, University of Umea, Sweden. Fredrik.Elgh@climi.umu.se
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