Many strains have a hyaluronic acid capsule that is antiphagocytic. Group B Streptococci (Streptococcus agalactiae) are bacitracin resistant. Group D include Enterococci (Streptococcus faecalis) and Non-enterococci (Streptococcus bovis).
The first warning refers to the risk of fetal alcohol syndrome (FAS), the leading known cause of mental retardation in the United States. The good news is that this condition is 100 percent preventable as long as a woman does not drink alcohol while she is pregnant.
Example-Fragile X: the most common form of mental retardation. The X chromosome of some people is unusually fragile at one tip-seen hanging by a thread under a microscope. Most people have 29 repeats at this end of their X-chromosome, those with Fragile X have over 700 repeats due to duplications.