Survival of Tick-Borne Encephalitis Virus in Goat Cheese and Milk

Survival of tick-borne encephalitis virus was studied from pasteurized and unpasteurized goat milk and from salted/unsalted and spiced/unspiced cheese made from goat milk inoculated with low and high litres of infective virus. Both soft (63 °C, 30 min) and fast (72 °C, 15 s) pasteurization condition...

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Veröffentlicht in:Food and environmental virology 2020-09, Vol.12 (3), p.264-268
Hauptverfasser: Rónai, Zsuzsanna, Egyed, László
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description Survival of tick-borne encephalitis virus was studied from pasteurized and unpasteurized goat milk and from salted/unsalted and spiced/unspiced cheese made from goat milk inoculated with low and high litres of infective virus. Both soft (63 °C, 30 min) and fast (72 °C, 15 s) pasteurization conditions destroyed viable virus particles. A small amount of infective virus could be detected only for 5‒10 days from milk, and from unsalted cheese. From milk inoculated with a higher amount of virus, infectious viral particles were detectable for 20‒25 days and from unsalted cheese samples for 10‒15 days, independently of the use of spices. Pasteurization and salt treatment made goat milk and cheese safely consumable. These two methods must be used when making any human food from goat milk to avoid milk-borne human TBEV infections.
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subjects Biomedical and Life Sciences
Biomedicine
Brief Communication
Cheese
Chemistry/Food Science
Dairy products
Encephalitis
Food Science
Goats
Milk
Pasteurization
Spices
Survival
Tick-borne encephalitis
Virology
Viruses
title Survival of Tick-Borne Encephalitis Virus in Goat Cheese and Milk
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