Tiêu đề 1. Bringing COVID-19 vaccines to much of world is hard.pdf ✅

ONLINE TRAINING GLOBAL CITIZEN PROGRAM Bringing COVID-19 vaccines to much of world is hard By Science News for Students, on 04.01.21. A vehicle with a COVID-19 vaccination team crosses a flooded bridge in a rural district in Zimbabwe. Delivering vaccines everywhere in the world is a major challenge in vaccinating the world's population. In 2020, several companies started making COVID-19 vaccines. A vaccine is a biological mixture, often in the form of a shot. It acts like something that causes a disease, such as a virus. It is given to help the body protect itself against a particular disease. Last year, rich countries started to order vaccines. They ordered hundreds of millions of doses. Some countries, such as the United States and Canada, ordered much more than their populations will need. It is very different in less wealthy countries. As of March 4, there were more than 80 countries with no vaccinated people. And of the 29 countries with the lowest income, only one has received the vaccine: Guinea in West Africa. But the country only got only 55 doses. The World Health Organization (WHO) is trying to help. This organization deals with major health issues around the world. It also sets standards for disease control. WHO helps lead the COVAX program. It is trying to get free shots to low-income countries. Some of the rich nations will give money. But COVAX is off to a slow start. So far, only 600,000 shots have shipped.