KEY POINTS
  • Hospital operator HCA has a large presence in Texas, where the flu outbreak has been especially severe.
  • Aetna is also set to report results on Janaury 30th, and eyes are on the regulatory outlook for the CVS' proposed $69 billion acquisition of the health insurer.
Larry Merlo, CEO of CVS and Mark Bertolini, CEO of AETNA appear on Squawk Box on Dec. 4th, 2017.

This week, investors could get a better picture of how this year's intense flu season is impacting health care firms, with three major health insurers and the nation's largest for-profit hospital operator set to report fourth quarter results.

Here's what to watch: