The Dean of Southwark has written the following prayer which you may wish to use:

Please pray for all who are involved in the response to this crisis worldwide. 

Loving God,
source of healing and comfort,
fill us with your grace,
that the sick may be made whole,
that those who care for us may be strengthened,
that the anxious may be calmed,
and those most vulnerable be protected
in the power of Spirit
in the faith of Jesus Christ our Lord.

Amen.