Stiftung Tierärztliche Hochschule Hannover (TiHo)

Susceptibility of tick-borne encephalitis virus to inactivation by heat, acidic pH, chemical, or UV treatment

Tick-borne encephalitis virus (TBEV) is a single-stranded, positive-sense RNA virus in the family Flaviviridae that is endemic in parts of Europe and Asia and can cause meningitis or encephalitis. Due to the disease severity, TBEV requires handling under heightened biosafety measures. The establishment and validation of inactivation procedures is a prerequisite for downstream analyses and management of occupational exposure. Therefore, different procedures for TBEV inactivation were tested. Our results suggest that TBEV is susceptible to inactivation by heat, acidic pH, different concentrations of alcohol, formaldehyde, or detergents, and exposure to UV irradiation, which may depend on sample size and composition.

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