Tips. 1  A German z is normally pronounced like an English ts. 2  A German s is normally pronounced like an English z. 3  In German, an ig at the end of a word is somewhat pronounced as a light ch, almost like the h sound in the English word huge. A German v is normally pronounced like an English f. 2  An esset (Î²) normally sounds like an English ss. 3  The German 1(one) is written accentually, making it look like a 7. 4  Find a study group and practice the pronunciation and the spelling of the numbers.
In 1977, Dr Jonas Salk, who developed the first polio vaccine, testified along with other scientists that mass inoculation against polio was the cause of most polio cases throughout the USA since 1961.
This and the fact that cases of polio caused by the oral polio vaccine (OPV) are not being reflected as polio have ensured that India is now declared âpolio freeâ and is being showcased as a success story of the Global Polio Eradication Initiative that was launched in 1988 by the World Health Assembly.orbidity and Mortality after Polio vaccination in Assam. --------------------------------------------------------. CALCUTTA: At least 10 children have died in India's northeastern state of Assam of side effects after being administered a vaccine during an polio immunisation campaign run by the state government.