No. The hepatitis B vaccine series should not berestarted when doses are delayed; rather, the seriesshould be continued from where it left off. Thevaccine recipient should receive the second doseof vaccine now and the third dose 2â5 monthslater.
The symbol used by mathematicians to represent the ratio of a circle's circumference to its diameter is the lowercase Greek letter Ï, sometimes spelled out as pi, and derived from the first letter of the Greek word perimetros, meaning circumference. In English, Ï is pronounced as pie (/paÉª/, paÉª).
Many suggestions have been made about the origin of the dollar symbol $, one of the commonest being that it derives from the figure 8, representing the Spanish 'piece of eight'. However, it actually comes from a handwritten 'p s ', an abbreviation for 'peso' in old Spanish-American books.