December 19, 2020 China News Hong Kong fourth wave: NGO, local firm team up to disinfect crowded, subdivided flats amid Covid-19 pandemic Source: scmp.com Key Topics in this News Article: ChinaChristianityCovid-19Hong KongPandemicReligionTechnology News Snapshot: The project, a joint effort by Christian Action and recently launched Aloes Tree, uses photocatalyst technology that kills germs with light. View Original Full News → News Timeline:Track the development of related news across the Internet. Timeline is being generated. Please check back and refresh this page soon.