Experts say it could be 2023 or later before COVID-19 vaccines are widely available in some countries. The United States, Israel and Britain are among the countries where more than half of the population has gotten at least one injection, or shot. But, some countries have fewer than one percent of their populations vaccinated. They include South Africa, Pakistan and Venezuela. About 10 countries mostly in Africa reportedly have no vaccines at all. There are many reasons for the difference. Economic ones play an important part. But, some people say, so do intellectual property laws that cover scientific discoveries. These laws protect people’s creative or scientific work from being reproduced without their permission. The administration of U.S. President Joe Biden has supported waiving intellectual property protections for the vaccines. But it is not clear if there will be agreement on the issue. It is also unclear if such an agreement would speed production. COVAX, a United Nations-supported project, aims to ensure that poor countries around the world are able to get vaccines. But COVAX has run behind schedule. The reason for the delay is partly because India, a vaccine manufacturer, has banned vaccine exports as it faces increased coronavirus infections. Some countries are also stockpiling vaccines. Stockpiling means getting and keeping a large supply of something for future use. In April, researchers at Duke University said that, even with help from COVAX, many countries would not be able to reach a 60 percent vaccination level until 2023 or later.