<P> On 7 January 1904, Ruth Cleveland died of diphtheria at the age of 12 years in Princeton, New Jersey . Ruth was the eldest daughter of former President Grover Cleveland and the former first lady Frances Folsom . She was the only one of the Clevelands' five children who died before adulthood . </P> <P> In 1905, Franklin Royer, from Philadelphia's Municipal Hospital, published a paper urging timely treatment for diphtheria and adequate doses of antitoxin . In 1906, Clemens Pirquet and Béla Schick described serum sickness in children receiving large quantities of horse - derived antitoxin . </P> <P> Between 1910 and 1911, Béla Schick developed the Schick test to detect pre-existing immunity to diphtheria in an exposed person . Only those who were not exposed to diphtheria were preferably vaccinated . A massive, five - year campaign was coordinated by Dr. Schick . As a part of the campaign, 85 million pieces of literature were distributed by the Metropolitan Life Insurance Company with an appeal to parents to "Save your child from diphtheria ." A vaccine was developed in the next decade, and deaths began declining significantly in 1924 . </P> <P> In 1919, in Dallas, Texas, 10 children were killed and 60 others made seriously ill by toxic antitoxin which had passed the tests of the New York State Health Department . Mulford Company of Philadelphia (manufacturers) paid damages in every case . </P>

When was the first vaccine for diphtheria invented
find me the text answering this question