The World Health Organization on Monday estimated that roughly 10% of the global population has had the coronavirus, which suggests that widely used case trackers are a vast understatement of the real scope of the pandemic.

“Our current best estimates tell us that about 10% of the global population may have been infected by this virus,” Mike Ryan, the executive director of WHO’s Health Emergencies Program, told an executive board meeting on Monday.

Based on a global population estimate of 7.6 billion, it would mean 760 million people have been infected by the virus. The widely used Johns Hopkins University tracker stands at over 35 million reported infections.

The estimate varies by country, urban or rural settings and different groups of people, according to Ryan.

“What it does mean is that the vast majority of the world remains at risk,” he said. “We know the pandemic will continue to evolve, but we also know we have the tools that work to suppress transmission and save lives right now, and they are at our disposal.”

The estimate aligns with previous studies of the U.S. population that suggested relatively few people have antibodies, raising doubts about the idea of herd immunity.

The global death toll of over 1 million fatalities is also an undercount, according to WHO Director General Tedros Adhanom Ghebreyesus.

“Today, almost 35 million cases of [COVID-19] have now been reported to WHO, and more than 1 million people are reported to have lost their lives. The real number is certainly higher,” he said from Geneva. “Numbers can blind us to the reality that every single life lost is someone who loved and was loved by others.”