World Health Organization Director-General Tedros Adhanom Ghebreyesus appealed on Tuesday for greater cooperation between nations to achieve worldwide vaccination at a scale needed to end the pandemic.

“Despite the growing number of vaccine options, current manufacturing capacity meets only a fraction of global need,” he wrote in Foreign Policy magazine.

"Allowing the majority of the world's population to go unvaccinated will not only perpetuate needless illness and deaths and the pain of ongoing lockdowns, but also spawn new virus mutations as COVID-19 continues to spread among unprotected populations," he wrote bit.

Rich countries squabbling over COVID-19 vaccine supplies must consider the situation in poorer parts of the world, the WHO said last week, warning that hoarding of shots “keeps the pandemic burning.”

A total of 104.9 million vaccine doses have been administered, according to University of Oxford-based Our World in Data here and the latest data on Wednesday from the U.S.-based Centers for Disease Control and Prevention here. The total vaccinated now exceeds the 104.1 million COVID-19 cases of infection in a Reuters global tracker here.

COVID-19 infections here are still rising in 44 countries and the virus has killed at least 2.26 million people globally, according to the Reuters tracker. Health experts are racing to vaccinate as many as possible in the face of new variants that are more contagious.

Duke University’s Global Health Innovation Center here confirms global purchases of 7.7 billion doses with another 5 billion doses under negotiation or reserved as optional expansions of existing deals.

Israel leads the world, having administered enough vaccine doses for 28% of its population, assuming every person needs two doses, according to Our World in Data.