6.8M views · 6.6K reactions | What are the SARS-CoV-2 variants circulating at this time? How are variants classified as variants of interest or concern? What does this mean for the public? WHO’s COVID-19 Technical Lead Dr Maria Van Kerkhove explains in this Science in 5 video. | World Health Organization Western Pacific Region | Facebook

SARS-CoV-2 infection produces detectable immune responses; however, the extent to which previously infected people are protected from a second infection is uncertain. Understanding whether post-infection immunity exists and how long it lasts has major implications for the SARS-CoV-2 pandemic. New research findings are summarized in a short video. https://nej.md/3q0frZL | The New England Journal of Medicine

1.9M views · 122K reactions | How does the SARS-CoV-2 infect us and how does our body react to it? The science of #COVID19 transmission & our immune response with @mvankerkhove | World Health Organization (WHO) | Facebook

307K views · 1.1K reactions | As soon as the first photos emerged of SARS CoV-2 scientists were off to the races to find an effective vaccine. Follow along as teams from across the globe got to work at giving the world a shot. The new CNN Film #RaceForTheVaccine premieres Saturday at 9 p.m. ET | CNN | Facebook