Commercial Fixed Wing
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Illness / Injury
Flight Crew Returned To Gate
Environment - Non Weather Related; Human Factors
As we were pushing back from the gate in ZZZ; the flight attendants informed me there was a passenger vomiting uncontrollably in the lavatory.  The flight attendants also informed me that another passenger witnessed the presumably ill passenger 'throwing up in a trash can outside the airport in front of the airline drop off area approximately one hour before the flight.'  We made the decision to call Ops and return to the gate.  When we got back to the gate the paramedics were standing by to meet the passenger.  The Station Manager came into the cockpit and said; 'Medical' says she is fine and wants to get her back on the airplane.'  Given the current environment that we are living in with COVID; we didn't feel that was the right thing to do so we left her at the gate. I told the Station Manager if she felt better in an hour and a half she could take the next flight. The flight attendants and passengers were grateful we didn't allow a sick passenger on the airplane.
Air Carrier Captain reported returning to the gate to remove an ill passenger from the flight.