More than 5.55 billion people worldwide have received a dose of a Covid-19 vaccine, equal to about 72.3 percent of the world population. This map shows the stark gap between vaccination programs in different countries.

The data is compiled from government sources by theOur World in Data project at the University of Oxford. A vaccinated person refers to someone who has received at least one dose of a vaccine, and afully vaccinated person has received either a single-dose vaccine or both doses of a two-dose vaccine, such as the Pfizer-BioNTech and Moderna shots.

U.S. vaccinations tracker ›

How many have been vaccinated, and who’s eligible

Many countries started to administer additional doses toward the end of 2021 after research found thatvaccine effectiveness wanes over time. More than 2.72 billion additional doses have been administered worldwide. Additional doses include booster doses given to fully vaccinated individuals when the protection from the original shots has begun to decline, as well as extra shots given to people, such as the immunocompromised, who did not have a strong immune response from their initial doses.

Pfizer-BioNTech and Moderna, the manufacturers of two of the most widely used Covid-19 vaccinations, have developed updated vaccines that more effectively protect against the newer Omicron variant. These are currently being administered in many countries, including the United States and Britain.

Vaccination rates around the world have stagnated in recent months, withpublic demand dropping even as vaccine supply has become more abundant.

Early leads in vaccination rates have become entrenched. Africa has the lowest vaccination rate of any continent, with just 37.2 percent of the population receiving at least one dose of a vaccine, compared to 82.3 percent in Latin America.

More than two-dozen different vaccines have been used worldwide, according to data fromOur World in Data.

Tracking the Coronavirus