1 The Centers for Disease Control and Prevention (CDC) recommends 2 doses of quadrivalent meningococcal conjugate vaccine for adolescents 11 through 18 years of age.  The first dose should be given at 11 or 12 years of age, followed by a booster dose at age 16.
A prostaglandin is a type of lipid that helps regulate an animal's body. Unlike hormones, prostaglandins generally affect an area of the body near where they are produced whi â¦ ch is why they are produced in many different places throughout the body. muhammad afzal 422,269 Contributions
The Difference Between HCG and Progesterone. Progesterone is a hormone that is similar in many ways to HCG, but also has lots of differences. While HCG is produced by the pregnancy, progesterone is produced by the ovary of the pregnant woman.