Chronic disease mostly seen in subtropical countries in which the staple food is maize. It is caused by deficiency of nicotinic acid (one of the B vitamins), which is contained in protein foods, beans and peas, and yeast. Symptoms include diarrhoea, skin eruptions, and mental disturbances.
The bison's head, star, rose, and crescent are traditional symbols of Moldavia. The colours are based on the Romanian flag. Effective date: 3 November 1990.