Notable healthcare headlines for the week: J&J, UnitedHealth, and CVS in focus

The S&P 500 Health Care Sector Index (XLV) gained 3% for the week.The top S&P 500 healthcare gainers and losers for the past week are as follows:TOP FIVE GAINERS: * Idexx Laboratories (IDXX [https://seekingalpha.com/symbol/IDXX]) +8.18% * CVS Health (CVS [https://seekingalpha.com/symbol/CVS]) +7.20% * Medtronic (MDT [https://seekingalpha.com/symbol/MDT]) +7.09% * Cigna Group (CI [https://seekingalpha.com/symbol/CI]) +7.04% * Mckesson (MCK [https://seekingalpha.com/symbol/MCK]) +7.03% TOP FIVE LOSERS: * Illumina (ILMN [https://seekingalpha.com/symbol/ILMN]) -5.62% * Humana (HUM [https://seekingalpha.com/symbol/HUM]) -4.33% * Moderna (MRNA [https://seekingalpha.com/symbol/MRNA]) -3.11% * Johnson & Johnson (JNJ [https://seekingalpha.com/symbol/JNJ]) -2.