Assay of neutralizing antibody: increased sensitivity of assay by plating on salt-deficient agar.
D000362:Agar; D000818:Animals; D000906:Antibodies / Q000032:analysis*; D003090:Coliphages / Q000276:immunology; D003470:Culture Media; D009500:Neutralization Tests; D011817:Rabbits; D012965:Sodium Chloride / Q000494:pharmacology*
D000906:Antibodies; D003470:Culture Media; D012965:Sodium Chloride; D000362:Agar