China reported a further drop in new infections on February 28, 2020, as concern mounted about the Covid-19 epidemic expanding to a global pandemic. China's National Health Commission said there were 327 new cases, a reduction in the daily figure which was 433 one day earlier. South Korea reported 256 new coronavirus infections, bringing its total number of infections to 2,022. Meanwhile, 8,400 people are being monitored in the US state of California, after health authorities confirmed an…