As the concerns against hoarding of the coronavirus vaccines by the wealthier nations grew tenfold, the United States reeled under the pressure of equitable COVID-19 jab distribution to the poorer nations, many of whom have no access to immunization yet. Despite the US' announcement of close to $4 billion funding for WHO’s humanitarian initiative COVAX, which focused on “fair and equitable'' vaccine distribution, the disparity between the rich and the poorer nations has deepened.READ | COVID-19: EU adds 'severe allergic reactions' to AstraZeneca's vaccine side-effectsThe rich countries have procured enough supplies to give each person at least four doses, according to an analytical report, with the US recently ramping up supply with 100 million additional vaccine doses from Johnson & Johnson.READ | Ricky Gervais shares his picture while getting COVID-19 vaccine; see how his fans reacted“At this critical moment, vaccine equity is the biggest moral test before the global community,” Guterres told a UN Security Council meeting, reiterating that as many as 130 poorer countries of the world had not received even a single dose of COVID-19 vaccine.READ | Kurz urges transparency in EU vaccine distributionAs the rest of the world, particularly the financially challenged African continent struggled with vaccine procurement, the US President Biden announced that there will be enough doses for every American by the end of May. "We're now on track to have enough vaccine supply for every adult in America by the end of May," Biden told a presser, touting his administration’s efforts to get a surplus of jabs.