CALGARY — The women's world curling championship in Calgary has the go-ahead from public health officials, but the status of Germany's team is unclear. Two Germans tested positive for COVID-19 in pre-tournament screening after arriving in Calgary. The other 13 teams in the 2021 LGT World Women’s Curling Championship were cleared to practise Thursday at WinSport's Markin MacPhail Centre. The championship opens Friday. The two participants who tested positive remain in isolation until cleared for release by Alberta's chief medical officer, the World Curling Federation said Wednesday in a statement. The rest of the German team, which tested negative, requires more testing to get approval to get on the ice.