There are a variety of speech-related symptoms that can be associated with apraxia, including: Difficulty stringing syllables together in the appropriate order to make words, or inability to do so. Minimal babbling during infancy. Difficulty saying long or complex words.
1 Understand that hepatitis B vaccination-induced protective antibodies can last for up to 15 years, but appear to fall off over time.
Answers. Best Answer: If you are healthy and had no complications from the vaccine, the Hepatitis B vaccine is known to provide immunity for at least 25 years and is believed to provide lifetime immunity.here is no recommendation like this in the US as long as you followed the normal vaccination schedule. You will probably never need another Hepatitis B shot. Source(s): Vandamme, P.; Van Herck, K. (2007). A review of the long-term protection after hepatitis A and B vaccination.