Various diseases that cause prolonged diarrhea, with cirrhosis of the liver, alcoholism, long-term use of the antituberculosis drug isoniazid, those with malignant cancer or Hartnup disease.
Secondary pellagra occurs when adequate quantities of niacin are present in the diet, but other diseases or conditions interfere with its absorption and/or processing.
People who rely on maize as their major food source and when a hospitalized patient is given I.V. fluids devoid of vitamins over the longterm, often develop pellagra.
Examples of secondary disease prevention are the: Screen test for HepaB antigen antibody, Breast Self Examination, Pregnancy test and all the tests done