A staff member at the Colwyn House rest home in Hastings has tested positive for Covid.
The staff member is now in isolation following a positive test on Sunday, and the rest home has enforced a no-visitor policy which will remain in place until Wednesday, Heritage Lifecare chief executive Norah Barlow said.
Barlow said the rest home was following public health advice for all close contacts.
"The staff member hasn't been to work since last Tuesday and is now isolating," she said.
"There are a limited number of close contacts to the staff member, as staff members are very wing-specific."