A day after data from the U.S. Centers for Disease Control and Prevention showed that nearly half of the adult population in the country has been fully vaccinated against the coronavirus, the head of the World Health Organization on Monday sharply criticized the \u0022scandalous inequity\u0022 of global vaccine access and said no single nation can assume it\u0026#039;s safe from the virus until all are.\u0022Almost 18 months into the defining health crisis of our age, the world remains in a very dangerous situation,\u0022 said WHO Director-General Tedros Adhanom Ghebreyesus in his opening remarks to the organization\u0026#039;s annual assembly of health ministers. Underscoring the danger, the WHO said in a report last week that the global death toll from Covid-19 is likely two to three times higher than officially reported, claiming the lives of as many as eight million people thus far.\u0022No country should assume it is out of the woods, no matter its vaccination rate.\u0022—Tedros Adhanom Ghebreyesus, WHODespite a downtown in Covid-19 cases and deaths over past three weeks, Tedros warned that the situation is still \u0022fragile.\u0022\u0022No country should assume it is out of the woods,\u0022 he said, \u0022no matter its vaccination rate.\u0022Among the concerns Tedros laid out is that the constantly changing nature of the virus could mean that current vaccines will be ineffective against new variants.\u0022We must be very clear,\u0022 he said. \u0022The pandemic is not over, and it will not be over until and unless transmission is controlled in every last country.\u0022Key to making that happen, said Tedros, is for nations to share a lrager supply of vaccines with COVAX—the global initiative co-led by Gavi, the Vaccine Alliance, the World Health Organisation (WHO), and Coalition for Epidemic Preparedness Innovations (CEPI). Right now, he said, COVAX is facing a \u0022vastly inadequate\u0022 supply of doses.Some wealthy nations like the U.S., meanwhile, have a surplus of vaccine doses.\u0022The ongoing vaccine crisis is a scandalous inequity that is perpetuating the pandemic,\u0022 Tedros said. \u0022More than 75% of all vaccines have been administered in just 10 countries.\u0022\u0022There is no diplomatic way to say it: A small group of countries that make and buy the majority of the world\u0026#039;s vaccines control[s] the fate of the rest of the world,\u0022 he said.There is simply \u0022not enough supply\u0022 globally, which means that \u0022countries that vaccinate children and other low-risk groups now do so at the expense of health workers and high-risk groups in other countries,\u0022 said Tedros. \u0022That\u0026#039;s the reality.\u0022Looking ahead to the WHO\u0026#039;s September goal of having at least 10% of the population of every country vaccinated and its December goal of having at least 30% vaccinated, Tedros said member states must ensure that they urgently direct to COVAX \u0022hundreds of millions more doses.\u0022 Vaccine makers must also offer new batches first to COVAX or commit 50% of their volumes to COVAX this year.Part of the shortage problem was put at the feet of Big Pharma.\u0022Several manufacturers have said they have capacity to produce vaccines if the originator companies are willing to share licenses, technology, and know-how,\u0022 said Tedros. \u0022I find it difficult to understand why this has not happened yet.\u0022A good effort, by contrast, is the proposal at the World Trade Organization for a temporary waiver of intellectual property protections on coronavirus-related vaccines and technology, he said, and welcomed recent U.S. support for it.As policymakers plot out Covid-19 recovery plans for a future in which it\u0026#039;s \u0022an evolutionary certainty that there will be another virus with the potential to be more transmissible and more deadly than this one,\u0022 Tedros cautioned against \u0022tinkering at the edges,\u0022 saying it\u0026#039;s instead \u0022the moment for bold ideas, bold commitment, and bold leadership; for doing things that have never been done before.\u0022\u0022In fact,\u0022 he added, \u0022the only choice we have is between cooperation and insecurity.\u0022Correction: This article has been updated to more accurately describe the groups and organization that facilitate COVAX.