WHO on August 4 called for a moratorium on Covid-19 vaccine booster shots until at least the end of September. This is to address the drastic inequity in dose distribution between rich and poor nations. World Health Organization Director-General Tedros Adhanom Ghebreyesus called on the countries and also companies controlling the supply of doses to make available more vaccines to less wealthy states. More than 4.25 billion doses of the vaccines have now been administered globally, as per an AFP count. “Accordingly, WHO is calling for a moratorium on boosters until at least the end of September, to enable at least 10 percent of the population of every country to be vaccinated," said Tedros. He said they need “everyone’s cooperation”. Tedros said the G20 group of nations had an important leadership role to play because those countries are the biggest producers, consumers and donors of Covid-19 shots. The United States on August 4 rejected an appeal from the UN health agency for a moratorium on Covid-19 vaccine booster shots and for rich countries to focus instead on supplying poorer nations. Watch the video to know more.