The name coupon arose because in the past, paper bond certificates were issued which had coupons attached to them, one for each interest payment. On the due dates the bondholder would hand in the coupon to a bank in exchange for the interest payment.
Hib vaccine. Haemophilus influenzae type B vaccine is a vaccine used to prevent Haemophilus influenzae type b (Hib) infection. In countries that include it as a routine vaccine, rates of severe Hib infections have decreased more than 90%. It has therefore resulted in a decrease in the rate of meningitis, pneumonia, and epiglottitis.
1 A complete Hib series is two doses plus a booster dose on or after 12 months of age (three doses total). If a child receives the first dose of Hib vaccine at 12 - 14 months of age, only one additional dose is required (two doses total). Any child who has received a single dose of Hib vaccine on or after 15 - 59 months of age is in compliance with these specified vaccine requirements.