These are known to be diseases that can be serious especially when they are not treated early. Malaria is a type of disease that has been caused by a parasite. Take note that this parasite comes in five different species and they will all affect humans.
Yellow fever, on the other hand, is caused by a virus. Like mentioned earlier, the death rates of these conditions can be fatal especially if proper treatment is not given immediately. Between the two, the death rates of malaria are known to be higher.
There are different symptoms that you need to watch out for so that you can seek medical treatments immediately. Chills will mean that the fever is serious. You may also experience profuse sweating and vomiting.