In the United States, 40% of the adult population has been vaccinated against the coronavirus.
As of April 4, more than 165 million doses of the vaccine had been administered in the United States. Seventy-five percent of seniors had received at least one dose.
The U.S. has outpaced such countries as China (138 million doses have been administered), the European Union (79 million), India (74.4 million) and Great Britain (36.6 million) in its immunization campaign.
However, America is behind Israel, Seychelles, the United Arab Emirates, Bhutan, Chile, the United Kingdom and Bahrain in administering 49 doses per 100 people.
Israel continues to be the world leader in vaccination. The country has fully immunized 53.2% of its more than nine million residents and partially immunized 58.1%.
Next in the ranking were the Seychelles, where 39.5% of the population were fully vaccinated and 66.8% partially vaccinated.
At the end of the list are Egypt, Mali, Mauritania, Venezuela, Vietnam, Iraq, Trinidad and Tobago, Namibia, Brunei, Gabon and Afghanistan. At least 30 countries have yet to start a vaccination campaign.