World Health Organisation is gathering the latest international multilingual scientific findings and knowledge on COVID-19 in their Global Data Base, accessible here.
Coronavirus disease (COVID-19) pandemic (World Health Organisation)
COVID-19 pandemic. Epidemiological updates and risk assessment (ECDC)
COVID-19 Communication Network (CCN)
Statistics and Research. Coronavirus Pandemic (Covid-19) (Our World in Data)
Coronavirus Vaccine Tracker (The New York Times)
How Nine Covid-19 Vaccines Work (The New York Times)
Also visit the page of our partner project CoronaSys regarding COVID-19 in Armenia.