Ugandan health officials are getting ready to test a new vaccine to stop Ebola in the capital city, Kampala. The vaccine will be given to over 2,000 people to see if it works against the specific kind of Ebola in Uganda. The World Health Organization is also helping by providing doses of the trial vaccine. There are no approved vaccines for this type of Ebola yet, so they are trying this new one to see if it can help prevent the disease from spreading. Ebola is a very serious sickness that can make people very sick and even cause them to bleed. The first person to get sick with Ebola probably caught it from an animal or eating its meat. It was first discovered in 1976 in Africa. Since then, there have been many outbreaks of Ebola, with the worst one in West Africa in 2014-2016, which killed many people. Now health officials are working hard to make a vaccine to protect people from getting sick. In Uganda, the government is working to find out how the nurse who died from Ebola got sick in the first place. They are also trying to find other people who may have been in contact with the nurse to stop the disease from spreading. Health workers and patients are being watched closely to make sure they don't get sick too. It's important to remember to wash your hands and to not touch things that may have germs on them, especially if someone is sick. This will help keep you healthy and prevent diseases like Ebola from spreading. Scientists and doctors are always working hard to find new ways to keep people safe and healthy.