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Before the vaccine was introduced in 1963, there were an estimated 3 – 4 million
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Before and vaccine
Before a vaccine was developed in World War II, typhus was a devastating disease for humans and has been responsible for a number of epidemics throughout history.
Before the development of vaccination and the introduction of a vaccine, it was a common childhood disease worldwide.
Before the introduction of the mumps vaccine, the mumps virus was the leading cause of viral meningoencephalitis in the United States.
Before the introduction of a vaccine, the mortality of the severe form of smallpox — variola major — was very high.
Before the widespread use of a vaccine against measles, its incidence was so high that infection with measles was felt to be " as inevitable as death and taxes.
Before the vaccine to rubella was introduced in 1969, widespread outbreaks usually occurred every 6 – 9 years in the United States and 3 – 5 years in Europe, mostly affecting children in the 5-9 year old age group.
Before and was
Before the Draft Act was passed Baker had confidentially briefed governors, sheriffs, and prospective draft board members on the administration of the measure -- and the confidence was kept so well that only one newspaper learned what was going on.
Before the fight was over, the Harlem boy had a concussion and Trig was cut up badly.
Before he left the apartment he knocked on their door and asked if there was anything he could do for them.
Before he left town Pat saw to it that I was fixed up with a job.
Before the airplanes came, he said, travel in Laos was just about impossible.
Before coming on a visit to Spelman in 1885, Miss Mary had been a successful teacher in Worcester, and her position there was held open for her for a considerable period.
Before he was forty Griffith had created the art of the film.
Before appealing to the U.N. or to Russia, he first appealed to the U.S. for military help, and was rejected.
Before her chore was finished she was rescuing wind-blown sheets of music, trundling microphones about the stage, helping to move the piano and otherwise joining in the informal atmosphere.
Before ASCII was developed, the encodings in use included 26 alphabetic characters, 10 numerical digits, and from 11 to 25 special graphic symbols.
Before Europeans discovered other oceans, the term " ocean " itself was synonymous with the waters beyond the Strait of Gibraltar that we now know as the Atlantic.
Before he could pass the river with safety, however, it was necessary to subdue certain fortresses, one of which was for several days vigorously defended by the governor, Yussuf el-Harezmi, a Khwarezmian.
Before the 1989 series began, the win-loss ratio was almost even, with 87 wins for Australia to England's 86, 74 having been drawn.
Before the late modern era, the abbot was treated with the utmost reverence by the brethren of his house.
Before the creation of the world, God was all by Himself, in a Self-absorbed state.
Before the Tennessee electorate voted on secession, Johnson, at his peril, toured the state, speaking in opposition to the measure, contending it was unconstitutional.
Before his death, he was absolved from the excommunication ; moreover, the Pope also promised that the King of Hungary and his relatives would not be excommunicated without the special permission of the Pope.
Before the 2007 season began, Vick was suspended indefinitely by the NFL after pleading guilty to charges involving dog fighting in the state of Virginia.
Before the War, Paul was a creative, sensitive, and passionate person, writing poems and having a clear love for his family.
Before the war Tjaden was a locksmith.
Before and introduced
Before the early 1840s, the cane toad had been introduced into Martinique and Barbados, from French Guiana and Guyana.
Before the Service Number was introduced in the 1990s, military personnel were identified on the I discs ( as well as other documents ) by their Social Insurance Number.
Before central power stations were widely introduced it was common for industries, large hotels and commercial buildings to generate their own power and use low pressure exhaust steam for heating.
* Short-lived nature of gene therapy – Before gene therapy can become a permanent cure for any condition, the therapeutic DNA introduced into target cells must remain functional and the cells containing the therapeutic DNA must be long-lived and stable.
Before the Roman invasion, begun in 43, Iron Age Britain already had established cultural and economic links with Continental Europe, but the Roman invaders introduced new developments in agriculture, urbanisation, industry and architecture.
" Before this study, it was thought that the Cuban Ivory-billed were descended from mainland woodpeckers, either introduced to Cuba by Native Americans or accidentals that flew to the island themselves.
Before LG Enhanced IPS was introduced in 2009, the additional transistors resulted in blocking more transmission area, thus requiring a brighter backlight and consuming more power, making this type of display less desirable for notebook computers.
Before tomato sauce was introduced, pasta was eaten dry with the fingers ; the liquid sauce demanded the use of a fork.
Before the 1980s, the North American phrase " trick-or-treat " was little known in the United Kingdom and Republic of Ireland and when introduced was often regarded as an unusual and even unwelcome import.
Before their marriage, she was working as a secretary for Arafat in Tunis after her mother introduced her to him in France.
Before the park debuted on October 1, 1982, Walt Disney World Ambassador Genie Field introduced E. Cardon Walker, Disney's chairman and CEO, who dedicated EPCOT Center.
Before the 1966 election, the widow ’ s pension was tripled and redundancy payments for laid-off workers were introduced.
Before the end of his first year at Conyers, Kelley was introduced into the congregation to his musical talents and often sang solo in morning church services.
Before stereo radio was introduced, the most common speaker location was in the middle of the dashboard pointing through perforations towards the front windshield.
Before Cros had a chance to follow up on this idea or attempt to construct a working model, Thomas Alva Edison introduced his first working phonograph in the USA.
Before the introduction of the iPad, Axiotron introduced the Modbook, a heavily modified Apple MacBook, Mac OS X-based tablet computer at Macworld in 2007.
Before he came to England, Robert had begun the construction of a new abbey church at Jumièges, in the new Romanesque style which was then becoming popular, and introduced to Normandy the two-towered western facade from the Rhineland.
Before mechanical printing, literature was copied by hand, and many variations were introduced by copyists.
On September 3, 2009, months upon the release of Before I Self Destruct, Jackson posted a video for the Soundkillers ' Phoenix produced track " Flight 187 " which introduced his mixtape, the 50th LAW, and was also featured as a bonus track on his iTunes release of Before I Self Destruct.
Jim Garrison defended his conduct regarding witness testimony, stating: Before we introduced the testimony of our witnesses, we made them undergo independent verifying tests, including polygraph examination, truth serum and hypnosis.
Many years later a second series, Before the Fact, originally published in 1901, was discovered and published in book form edited and introduced by detective fiction scholar Douglas G. Greene.
Before graduating from Yale ’ s Sheffield Scientific School in 1884, he showed a small collection he had made of Carboniferous fossils to George Jarvis Brush, who later introduced him to the paleontologist Othniel C. Marsh.
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