HAV recovery from tap water: evaluation of different types of membranes

A cytopathic strain of hepatitis A virus (HAV) has been used to evaluate the absorption-elution of several membranes. Filters were obtained from four different manufactures: Sartorius, Millipore, Gelman and Cuno. Only the electronegative HAWP (Millipore) and the electropositive (Cuno-Div.) filters appear to absorb HAV with a high efficiency.