Nov 8 (Reuters) - Hong Kong shares finished lower on Monday, dragged down by tech giants and healthcare stocks, with COVID-19 vaccine-related stocks slumping after Pfizer’s advancement in coronavirus medicine. The Hang Seng index fell 0.4%, to 24,763.77, while the China Enterprises Index lost 0.3%, to 8,793.73 points. ** The healthcare sub-index lost 3%, weighed by vaccine-related stocks. ** Cansino Biologics Inc, one of China’s COVID-19 vaccine makers, slumped more than 17%, after Pfizer Inc said its experimental antiviral pill to treat COVID-19 cut by 89% the chance of hospitalization or death for adults at risk of the severe disease. ** The Hang Seng Tech Index dropped 1.3%. Constituents Alibaba Group and Meituan finished down 1.6% and 2%, respectively. ** An index tracking gaming stocks listed in Hong Kong surged 5.7%, with Sands China up 7.7%, as solid gaming revenue data in Macau reflects the gradual recovery in visitor arrivals. ** Citi said the recent COVID-19 outbreak in China will not have any material impact on GGR, considering the fact that most cases identified to-date are from Northern China. ** Hot pot chain Haidilao International added 4.8% after plans to shut some stores, slamming the brakes on a rapid expansion it undertook during the pandemic. ** The financials sub-index and the energy sub-index finished up 0.9% and 1.6%, respectively. (Reporting by the Shanghai Newsroom; Editing by Shailesh Kuber)