The Gwynedd Archaeological Trust says road works and a honeycomb of buildings were found, but no defensive ditches.

BBC: 'Important' Roman site found at Llanedwen, Anglesey

Xolair works by targeting an immune-system molecule called immunoglobulin E (IgE), a crucial defensive weapon that goes into overdrive in many patients with allergic asthma.

FORBES: Attacking Asthma, For A Price