@watch4thedrop I am going to have to respectfully educate here. Antibodies ALWAYS drop off after a few months. It is how our bodies are designed. The cells that remain, called B cells, migrate to the bone marrow. What remains behind, however, is the ability of our T-cells to "Recognize" the infection immediately and direct the B-cells in our bone marrow to make NEW antibodies. The "experts" are NOT so expert after all.