When Virkon for farm biosecurity is just not enough.

The importance of thorough cleaning with detergent before disinfection to reduce the presence of viruses, bacterial and fungal spores is highlighted in this paper from Letters in Applied Microbiology.

Researchers from the University of Nottingham specifically looked at the efficacy of industry standard disinfectants against porcine rotavirus in the presence and absence of organic matter.

In the UK, the Department for Environment, Food and Rural Affairs (DEFRA) test disinfectants against food and mouth disease virus (FMDV), swine vesicular diseases (SVDV), avian influenza, tuberculosis and for general use but not against rotavirus. Rotavirus is an enteric pathogen that causes morbidity and mortality in young mammals, including pigs and outbreaks have a significant economic impact in terms of losses in production. This study investigated the efficacy of six commercial disinfectants against MS2 bacteriophage and Group A porcine rotavirus.

They found Iodophore based disinfectants do not have a significant virucidal effect against rotavirus under any conditions. For peroxygen compound-based disinfectants, including the widely used Vikon-S®, organic matter load made a significant difference in reducing efficacy.

Infection of Porcine rotavirus has a negative impact on the health and growth of pigs in production.  Given that the virus is transmitted faecal orally, use of an effective disinfectant on farm, which works even in high organic matter, has the potential to save costs in terms of outbreaks of disease and viral load.

You can read the full article here 

http://onlinelibrary.wiley.com/doi/10.1111/lam.12502/abstract;jsessionid=D8AFF84F01DDC445D2173BD7E2DF45EA.f04t04



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