Category: D

A phenomenon that illustrates the reversibility of precipitation of antibody and antigen complexes. When a specified amount of diphtheria toxin is added all at once to an antitoxin serum, the mixture is non toxic; but when the same quantity of toxin is added in portions at about 30-min intervals, the mixture is toxic.  

A rare X-linked lysosomal storage disease whose clinical features often include cardiomyopathy, skeletal myopathy, and mental retardation.  

Dengue; an acute, epidemic, febrile disease occurring in tropical areas.  

In Europe during the Middle Ages, an epidemic chorea supposed to have been caused by the bite of the tarantula.  

The therapeutic use of creative dance for healing.  

Steady diminution of the amplitude of successive vibrations, as of an electric wave or current.  

A thin sheet of latex used in dentistry and oral surgery to isolate a part from the surrounding tissues and fluids.  

A law that states that, in a mixture of gases, the total pressure is equal to the sum of the partial pressures of each gas.  

A test formerly used to demonstrate the ability of muscle tissues from an anaphylactic organism to contract on re-exposure to the antigen.  

A food resembling an existing dairy food in taste and appearance but differing in composition from the dairy food for which it is substituted.