The masters think a slave who chooses to work during his time off doesn't deserve the time off, and a slave who doesn't work to save enough throughout the year to buy whiskey for the holidays is considered lazy.
An adjuvant is a substance added to some vaccines to enhance the immune response of vaccinated individuals. The aluminum salts in some U.S. licensed vaccines are aluminum hydroxide, aluminum phosphate, alum (potassium aluminum sulfate), or mixed aluminum salts.
Antigen vaccines. Antigen vaccines use specific proteins or parts of proteins (antigens) from the surface of cancer cells to stimulate the immune system to fight these cells. Cancer cell antigens are sometimes mixed with substances to help the vaccine work better.These substances are called adjuvants. vaccine stimulates the immune system to produce antibodies to fight a disease. Most vaccines are used to prevent infectious diseases caused by viruses, such as the flu, measles or polio. Cancer vaccines are used to: 1  prevent a cancer from developing (prophylactic, or preventive, vaccine).