Word: less
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Dates: during 1980-1989
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...Generally we assume that people who were born before 1957 have had measles and are immune to it," Zuromskis said. "Subsequent to that there was a vaccine that was less than 100 percent effective--so everyone that had been vaccinated before 1967 but after 1957 was partially protected...
...that cases have been reported in which people inoculated between 1967 and 1980 had developed measles, despite the belief that that particular vaccine was fully effective. "People who had proper vaccine got measles. It is possible that a small number of people got a vaccine that may have been less that 100 percent effective," he said...
...reality, all current retirees get far more back in benefits than they paid in. The average Social Security recipient gets back his or her entire contribution, plus the employer's matching contribution, plus interest in less than four years...
...more than 50 years, Social Security has been the cornerstone of liberal efforts to fight poverty. And it has been effective. The rate of poverty among the elderly has fallen from about one in three to less than...
Columbia University has initiated a $25 million fellowship program to provide research internships for minority undergraduates and to fund their graduate studies. Columbia has also adopted a loan forgiveness program, under which minority students will find it less costly to go on to graduate school. Why isn't Harvard doing anything like that...