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.
WebMD News Archive. Oct. 13, 2005 -- The hepatitis B vaccine lasts for more than 10 years, so a booster vaccine may not be necessary, Italian researchers report. Booster doses of vaccine do not seem necessary to ensure long-term protection, write Alessandro Zanetti, PhD, and colleagues in The Lancet.