11. Prednisone will often lower the titer over time. 12. Pigs nursing immune dams absorb a high titer of antibody for PPV from colostrum. 13. The titer corresponds to the most dilute tube in the series that still shows positivity. 14. A patient might be reported to have an " indirect Coombs titer " of 16. 15. These heterotypic antibody titers decrease over long time periods ( 4 to 20 years ). 16. The titer value is then commonly assigned to be the highest dilution, such as 5120. 17. CSF culture is typically sterile, and there is no increase in CSF cryptococcal antigen titer . 18. Infection is prevented by inducing high antibody titers that block the parasite from infecting the liver. 19. While heterotypic IgG antibody titers decrease, homotypic IgG antibody titers increase over long time periods. 20. While heterotypic IgG antibody titers decrease, homotypic IgG antibody titers increase over long time periods.
