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.
Known as ‘white sun in blue sky’, the flag of Chinese revolutionary leader Sun Zhong Shan appears in the canton. The rays of the sun represent 12 traditional Chinese hours (each equalling two hours) symbolizing progress. Red is a traditional Chinese colour. Effective date: 8 October 1928.