The serum antibody response to bacteriophage phi chi 174 in germ-free and conventionally reared mice. I. Assay of neutralizing antibody by a 50 per cent neutralization method.

The serum antibody response to bacteriophage phi chi 174 in germ-free and conventionally reared mice. I. Assay of neutralizing antibody by a 50 per cent neutralization method.