The number of coronavirus cases registered worldwide has exceeded 100 million, according to data from Johns Hopkins University.
The milestone comes the same day the UK death toll surpassed 100,000.
The country with the most Covid-19 cases is the US with more than 25 million, according to the institution.
India has had more than 10 million cases and Brazil has more than 8.8 million cases.
The official Covid-19 dashboard in the UK says it has registered more than 3.7 million positive cases.
According to data from John Hopkins University, more than 2.1 million deaths have been recorded worldwide since the pandemic began.
Britain has the highest number of deaths per 100,000 people in the world, according to the university.
The UK leads the stats as the second wave of the pandemic causes more tragedies around the world.
The number of people in the UK reported to have died of Covid-19 in the past 24 hours rose by 1,631 on Tuesday.
Boris Johnson defended his administration’s response to the pandemic as he offered condolences to the families of the victims.
He vowed to remember the lost lives and work of frontline heroes, while admitting that lessons had to be learned in the UK’s response to Covid.
The virus’ march around the globe is not evenly distributed.
While many countries including the US, UK and parts of Europe have been hit by the virus, other parts of the world that have been tough and early lockdowns have kept the virus at bay better.
Mr Johnson’s administration is under fire this week for planning to tighten border controls again as critics say it has been too slow to implement plans such as quarantine hotels for arrivals in the UK.
The UK’s mass vaccination efforts have accelerated the adoption of other countries. To date, more than 6 million people have received a first dose of the vaccine.
Governments around the world hope that vaccines will be the first step to “normal” life, more than a year after the first outbreak in Wuhan, China.
The Commons International Development Committee warned today that the consequences of the pandemic for poorer countries are not yet fully understood.
The committee called on the UK government to reduce developing country debt, warning that doing so would lead to extreme poverty and food insecurity, and divert resources away from other pressing health crises.
Foreign Minister Dominic Raab said countries’ debt relief needs to be considered in support of their pandemic.