2013 Legislation. Alaska: House Bill 21 - would have allowed for four-day school week pilots. This bill failed. California: Senate Bill 236 - would have allowed certain districts to pilot four day school weeks for high schools. This bill was passed and enacted.
Hepatitis B vaccine is a vaccine for the prevention of hepatitis B, an infection caused by the hepatitis B virus (HBV) . The vaccine contains one of the viral envelope proteins, hepatitis B surface antigen (HBsAg). It is produced by yeast cells, into which the genetic code for HBsAg has been inserted.
The hepatitis B vaccine protects against hepatitis B. It is administered in one primary dose and two booster doses to healthy adults 20 years and older and to healthy children and young adults 18 months to 20 years old. What to know before your visit. Our practitioners provide this vaccine to children 18 months or older.*.