A consensus rating method for small virus-retentive filters. II. Method evaluation.

Virus filters are membrane-based devices that remove large viruses (e.g., retroviruses) and/or small viruses (e.

A consensus rating method for small virus-retentive filters. I. Method development.

Virus filters are membrane-based devices that remove large viruses (e.g., retroviruses) and/or small viruses (e.

PDA Virus Filter Task Force update.

The PDA Virus Filter Task Force has made significant progress in producing a method that will standardize the nomenclature for virus-removal filters that remove large viruses. A method for preparation of the model bacteriophage, PR 772, has also been produced and will shortly undergo a feasibility study. A technical report on the use of virus removal filters is also being prepared.