The central quarantine site at the Shanghai New International Expo Center in the Pudong New Area will be put into use soon, local officials said.The site, the biggest quarantine venue in Shanghai yet, is expected to have up to 15,000 beds and will be used for people with mild COVID-19 symptoms and asymptomatic infections.Multiple medical teams from top local hospitals like Shanghai 6th People's Hospital, Shanghai 10th People's Hospital and Shanghai Yueyang Hospital of Integrated Traditional Chinese and Western Medicine have already arrived at the site.