US probe into COVID-19 origins attempts at info war against China: Expert Experts dispel doubts about efficacy of Chinese-made vaccines: US media Fallen Tigers book fosters civil exchange between China, US Macao's cross-border vehicle traffic rises to 4.9 m trips in 2018 Visa curbs, virus challenge Chinese students in the US Chinese progress in striking contrast with American paralysis: former US House speaker Photographer captures the beauty of Hong Kong's concrete jungle China condemns lie-based US sanctions on Chinese firms Online concert: Chinese overseas students perform concerto Yellow River Heightened scrutiny on scientists of Chinese origin to harm US: analysts Macao's merchandise export grows by 8.1 pct in 2018 Forbidden City's 600 years focus of show Chinese firms hold steady on US market Chinese progress in striking contrast with American paralysis: former US House speaker US ban on China's camera makers will backfire: Bloomberg US slammed over visa curb of Chinese students Racial bias pinned as driving security probes Virtuous China-US competition contributes to world peace: media Shanghai car accident kills one tourist from Taiwan, injures nine