translate English to French: It is assumed that filtration removes at least 90% (1 log) of viruses and that disinfection provides a further 99.9% (3-log) inactivation (Table 3).
On suppose que la filtration élimine au moins 90 % (1 log) des virus et que la désinfection porte l'inactivation à 99,9 % (3 log) (tableau 3).