Following on from my previous post regarding “sentinel testing” (https://thefishvet.wordpress.com/2012/07/24/sentinels-in-quarantine/), Singapore has been using it for quite a while.
The excerpt below is taken from Ling & Poh, Quarantine, Surveillance, and Monitoring of Koi Herpesvirus in Singapore. The Israeli Journal of Aquaculture – Bamidgeh 61(3), 2009.
For high value koi, taking samples would be cost prohibitive to the traders. In such cases, the consignment is cohabited with sentinel KHV-free koi for one week, after which the latter are tested for KHV. The high value consignment continues its quarantine for three
weeks. If the sentinel koi test negative for KHV, the consignment is released, but if the sentinel koi test positive, the consignment is destroyed. Strict controls are imposed to ensure that koi exports from Singapore are also free from KHV. These include a compulsory quarantine period of a minimum three weeks prior to the issuance of a KHV-free certificate.
