In a pandemic era when COVID-19 death toll has reached 2 million worldwide, everyone has been anxiously waiting for the vaccines reaching those in need and actually turning things around. But if you think twice about it, the whole human history is actually a continuous battle between us and different kinds of pandemics.

Italian researchers at the University of Milan have found that a woman was already infected with COVID-19 in November 2019, months before the first official case was reported in the country in February 2020.

A coronavirus vaccine developed by China's Sinovac Biotech was 78% effective in a late-stage Brazilian trial with no severe COVID-19 cases, researchers said on Thursday (Jan. 7), although a lack of data details stirred calls for more transparency.

The government says its Covid-19 tracing app will record people's whereabouts automatically in the future, saving them the need to check in and out of places they visit.

China's Mars probe Tianwen-1 had traveled more than 400 million kilometers by Sunday morning and is expected to enter Mars orbit next month, according to the China National Space Administration (CNSA).

A vaccine developed by a unit of China National Biotec Group (CNBG) is 79.34% effective at protecting people from COVID-19 and the company has filed an application for regulatory approval in China for its general public use, the developer said on Wednesday (Dec. 30).

Scientists have speculated that the compound polyethylene glycol, also known as PEG, could cause allergic reactions to the COVID-19 vaccine developed by U.S. company Pfizer and German company BioNTech, media reported.

China produced the world's second-largest number of high-quality research papers in 2019, according to a report revealed Tuesday (Dec. 29).

The Phase 3 trial of another investigational COVID-19 vaccine has begun enrolling adult volunteers, the U.S. National Institutes of Health (NIH) announced on Monday (Dec. 28).

China will build more than 600,000 5G base stations next year, said Xiao Yaqing, minister of industry and information technology at a working conference on Monday (Dec. 28).

China's Chang'e-5 probe retrieved about 1,731 grams of samples from the moon. It has been much anticipated just how these would be used for research. Researchers have set up special storage facilities, constructed laboratories for sample processing and analysis, and developed detailed operating procedures to ensure that lunar samples are not contaminated as far as possible and that the research results are reliable.

The School of Communication at Hong Kong Baptist University (HKBU) launched the HKBU FactCheck Service on Tuesday (Dec. 29), aiming to provide an authoritative, professional and impartial fact-checking service amidst the proliferation of fake news, and to improve the public's media literacy in the digital era.

China sent a new remote sensing satellite into space from the Jiuquan Satellite Launch Center in northwest China at 11:44 p.m. Sunday (Dec. 27).

The City University of Hong Kong (CityU) announced on Sunday that the Greater Bay Area Joint Laboratory of Big Data Imaging and Communications has been established by its Department of Electrical Engineering and the State Key Laboratory of Terahertz and Millimeter Waves.

China's indigenously-developed C919 large passenger aircraft has started cold-weather test flights in Hulunbuir in north China's Inner Mongolia Autonomous Region.