I am from Belgium (and currently living there). Newspapers reported at the time that it actually was 45 liters of a solution contaminated with the polio virus,

I am from Belgium (and currently living there). Newspapers reported at the time that it actually was 45 liters of a solution contaminated with the polio virus, not 45 liters of a polio virus concentrated solution. https://translate.google.com/translate?sl=auto&tl=en&js=y&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fwww.lesoir.be%2F647061%2Farticle%2Factualite%2Fregions%2Fbrabant-wallon%2F2014-09-06%2Fgsk-rejette-du-liquide-contamine-par-polio-rixensart&edit-text= https://translate.google.com/translate?sl=auto&tl=en&js=y&pr... http://www.biopharma-reporter.com/Downstream-Processing/Production-on-hold-at-GSK-plant-after-polio-virus-enters-water-supply http://www.biopharma-reporter.com/Downstream-Processing/Prod... The word 'concentrated' seems to have been picked up over the last few days.