Australia: Fears grow as white spot detected in crab in Logan River

The devastating white spot disease threatening the Logan River prawn farming industry has now been detected in a crab. If retesting confirms the virus, it would be the first time the disease has transferred between species in Australia. Biosecurity Queensland tested the crab, which was found in a drainage channel near one of the infected prawn farms, this week and confirmed it initially tested positive for the virus that causes white spot. White spot, which can cause 100 per cent mortality within 10 days in farmed prawns, was first detected at a farm in Alberton, south of Brisbane, on November 22. The disease has spread to four other farms, forcing each farm to completely de-stock, a move ­estimated to cost the industry $25 million. Until the outbreak, Australia was considered free of white spot, which has spread throughout Asia and the Americas but does not pose a risk to humans. The detection in the crab was the first time the disease has appeared outside of a farm since six wild prawns were discovered with “low levels” of the disease on December 8. Read the story here 12:13