Hong Kong health authorities are expecting around 20 Covid-19 cases on Tuesday, as another infection cluster has been found at a care home for the disabled in Kwai Chung.The new infections were recorded as the health minister will announce at 1.30pm whether social-distancing measures should be relaxed.The cluster, announced by Chief Executive Carrie Lam Cheng Yuet-ngor on Tuesday morning, was linked to a hostel for the disabled run by the Hong Chi Association at Lei Muk Shue in Kwai Chung.Three…