A polio endgame, soaring measles cases, a breakthrough in HIV vaccine research and other vaccines and global health news in this week's News Roundup.

The number of polio cases has plummeted in the last 25 years, from 300,000 to less than 300. Even so, last May the World Health Organization declared that global eradication of polio, reaching that last 0.1 percent, was a “programmatic emergency for global public health.”

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