dataThe Our World in Data COVID vaccination data. Vaccination has saved millions of lives during the COVID-19 pandemic. Within a year of the start of the pandemic, several vaccines wereData are a collection of discrete or continuous values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted formally. A datum is an individual value in a collection of data. Data are usually organized into structures such as tables that provide additional context and meaning, and may themselves be used as data in larger structures. Data may be used as variables in a computational process