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.
Immunology A substance that enhances or diversifies the immune response; a nonspecific immune enhancerâe.g., Freundâs adjuvant, BCG vaccineâconsisting of particulate-rich oily substances which promotes protein aggregation; adjuvant mixed with an antigen acts as a tissue depot, slowly releasing antigen and activating the immune system.