BBC News Published A company spokesman said there was "no evidence of a link between cases". Further measures have been introduced to restrict the spread of the virus at the depot, where about 300 people work. Bus services are running at 87% of normal levels and passenger numbers have been reduced by half because of lockdown. Staff in contact with colleagues who had tested positive are self isolating and on 80% of their basic pay. Temperature checks have been introduced at the depot, with staff and visitors asked about symptoms on arrival. First Bus said services could drop to 80% but this is not expected to impact the number of passengers able to travel.