Queen Elizabeth II is still healthy and doing well following Prince Charles' coronavirus dignosis last week.The queen and Prince Philip are now being looked after by a very small group of their most trusted and longest serving aides, a source tells ET.The queen «remains in good health and is following all the appropriate advice with regards to her welfare,» the source says.ET has also learned that only essential staff are having contact with the queen — and extended family members and those working for the 93-year-old monarch are kept at a distance following social distancing protocols that have been put in place to protect the queen and other British citizens.Prince Philip, who had been living at Wood Farm in the Sandringham estate, is in