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
Written By: Prostaglandin, any of a group of physiologically active substances having diverse hormonelike effects in animals. Prostaglandins were discovered in human semen in 1935 by the Swedish physiologist Ulf von Euler, who named them, thinking that they were secreted by the prostate gland.