I just want to ask if my anti-HBs decreases below the cut off level, do I need a booster or another series of vaccinations? Someone told me that even though my anti-HBs decreases to zero, I still have cellular immunity to hepatitis B. So I won't be needing another immunization. The important thing is that my previous immunization was successful, meaning to say, I was able to generate enough anti-HBs from that immunization. Any comment on this?
Thank you very much!