Second attempt!
I think it is peculiar that she hasn't been doing any briefings or other press, as Home Secretary, and wonder if anyone knows why this might be?
I'm guessing that if she were shielding for a health issue or self-isolating with symptoms, something would have been said to avoid speculation.
I wonder if they are planning to play around with the structure - i.e. maybe have a specific "Crisis" Minister in addition to Health (it might be Gove), and with Business etc. taking on more prominence, this might mean the Home Sec's role is diminished somewhat.