The four-leaf clover is a rare variation of the common three-leaf clover. According to traditional superstition, such clovers bring good luck, though it is not clear when or how this superstition began.
Common signs of infection include respiratory symptoms, fever, cough, shortness of breath and breathing difficulties. In more severe cases, infection can cause pneumonia, severe acute respiratory syndrome, kidney failure and even death.
National Day of Singapore is celebrated every year on August 9, in commemoration of Singapore's independence from Malaysia in 1965.
Summer is coming to an end and teachers from all over the country are preparing for the school year with welcome poster designing, course planning and classroom decorating.
