Abbott's fourth-generation antigen-antibody test paper with two drops of blood is much less.

Quite a lot. Abbott's fourth-generation antigen-antibody test paper is mainly used to detect human immunodeficiency. The standard of Abbott's fourth-generation antigen-antibody test paper is that only one drop of blood as big as soybean and one drop of diluent are needed when it is used, and the human body can be detected without adding two drops of blood.