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In response to a worldwide viral pandemic that infected millions in 2020, scientists began working on a vaccine that could protect people against COVID-19, the disease caused by the virus SARS-CoV-2. The virus was discovered in China in late 2019, and by early 2020 had spread rapidly across the globe. While normal vaccine development takes years, scientific teams used relatively new forms of research to produce vaccines in record time. Several vaccines passed through testing and showed... więcej
Salem Press Encyclopedia of Health, 2023. 3p.
