Inactivation of Hantaan virus-containing samples for subsequent investigations outside biosafety level 3 facilities.

Abstract:

OBJECTIVES:The potential risk of accidental infection by hantaviruses in a clinical or research laboratory necessitates special precautionary measures. A biosafety program must address handling and disposal of infectious materials as well as appropriate virus inactivation or depletion procedures to permit necessary further processing of specimens outside the biosafety level 3 laboratory. METHODS:To study the elimination of hantavirus infectivity, the effects of different chemical and physical inactivation and depletion procedures were investigated on Hantaan virus-containing materials. An infectivity assay for hantaviruses was utilised to verify these procedures which are commonly preceding investigations such as ELISA, flow cytometry analysis, Western blot or immunofluorescence assay. RESULTS:Chemical inactivation with methanol, paraformaldehyde, acetone/methanol and detergent-containing lysis buffer as well as physical forces such as UV irradiation and filtration efficiently reduced viral infectivity in infected cells and their supernatants below the detection limit. CONCLUSION:The virus inactivation and depletion methods described herein are suitable to prepare non-infectious samples for further use in immunological, virological and cell-biological assays.

journal_name

Intervirology

journal_title

Intervirology

authors

Kraus AA,Priemer C,Heider H,Kruger DH,Ulrich R

doi

10.1159/000084603

keywords:

subject

Has Abstract

pub_date

2005-01-01 00:00:00

pages

255-61

issue

4

eissn

0300-5526

issn

1423-0100

pii

84603

journal_volume

48

pub_type

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