News bites: Medicare solvency report due, Hatch to face primary challenge and more

All eyes are on the trustees of Social Security and Medicare, who will give their annual prognoses for the programs Monday afternoon, The Associated Press reports.

Most of the new accountable care organizations approved by Medicare are run by doctors, American Medical News reports.

Sen. Orrin Hatch (R-Utah) will face a Republican primary challenge in part because of his work with the late Ted Kennedy on health issues, Bloomberg Businessweek reports.

Swiss food giant Nestle will purchase Pfizer's infant nutrition business for $11.85 billion, Reuters reports.

Manipulating microorganisms in the gut might help treat obesity, MedPage Today reports.

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