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    Several Alzheimer’s vaccines enter clinical trials amid breakthrough remedies’ success

    Breakthrough Alzheimer’s treatments that remove toxic proteins from the brain have revived interest in vaccines to treat the memory-robbing disease, potentially offering a cheaper, easy-to-administer option for millions of people, according to interviews with 10 scientists and company executives. Clinical trials are underway or completed for at least seven Alzheimer’s vaccines designed to harness the immune system to rid the brain of the disease-related proteins beta amyloid or tau, a…