1. Dr. FRED BUCKHOLD, SLU Care General Internist at SSM Health Saint Louis University Hospital, and a professor of medicine at St. Louis University School of Medicine.  COVID-19 update -- booster is out, who should get it?  More COVID-19 test kits will be available from the government for free starting on Monday.  How much should we trust these tests?  Also, what's Dr. Buckhold's take on the FDA rejecting approval of a new nasal spray to administer epinephrine to people having a severe allergy attack?  Dr. Buckhold says the FDA wants to see more study on the device.  Why?

2. JAMIE MAINS, certified physical therapist at St. Louis Children's Young Athlete Center.  New sports-concussion care guidelines have just been released. What are they? What is a concussion? What are the symptoms? A key update is that strict rest is no longer recommended following a concussion.  When should an athlete be pulled out of play? What sort of rehab should they have?  When can they return to play?  What's the most important thing for parents to know about concussions?

3. Dr. ANN ELIZABETH MOHART, Mercy VP and medical director of care transitions.  Mercy launches the first Hospital-at-Home program in the St. Louis area.  How will it work? Who will be eligible? What are the typical types of illnesses that can be treated at home?  Who will provide the hospital-level care in the home?  What if you need medical equipment at home?  Is this an outgrowth from Mercy's virtual care?  Is hospital care at home more affordable than in the traditional hospital setting?

4. CNN's MEG TIRRELL. Do COVID-19 tests need to be updated -- just like the COVID-19 vaccine due to all the new variants?  Tirrell tells us the tests do not need to be updated since they look for a different marker than the one targeted by the vaccines.  And why are some people finding their COVID-19 test says they are negative when they know they should be positive?  Tirrell says that's all about timing - and she tells us what the CDC recommends when it comes to WHEN to test for the virus.