00812nam a22002057a 4500 D0001NC092120-010 OSt 20200924112105.0 200924b ||||| |||| 00| 0 eng d Cheung, Elizabeth Dozens of Hong Kong university laboratory staff in quarantine after environmental samples test positive for coronavirus / https://www.scmp.com/news/hong-kong/health-environment/article/3102262/hong-kong-facing-most-new-covid-19-cases-almost Hong Kong University environmental samples test positive Cheng, Lilian Cheung, Tony SCMP September 21, 2020 http://elibrary.doh.gov.ph/cgi-bin/koha/opac-retrieve-file.pl?id=cddd95986efc792b067336c9125e5299 NC 1337 1337 0 0 0 0 DOHCL DOHCL ElectronicRes 2020-09-24 0 092120-010 D0001NC092120-010 2020-09-24 00:00:00 2020-09-24 NC