The daily pace of Covid-19 vaccinations has increased in about a dozen countries due to the arrival of the more contagious Delta variant and governments expanding their vaccination drives, a data analysis by Reuters found.

Israel's rate of vaccinations has seen a sharp pickup. The Netherlands, Norway, Portugal, Saudi Arabia, Singapore, and Spain are all vaccinating at their fastest speed to date. Belgium, Denmark, Finland, and Sweden are not far behind.

But it is a different story in the United States with the vaccination pace there currently declining. Dec 1 is the estimated date for 70 percent of the US population to have received a first dose of the vaccine, according to the Reuters analysis of Our World in Data vaccination figures. Currently, 55 percent of the US population has received their first dose.

At the current pace, Canada, Chile, the United Kingdom, and eight others...