Yellow fever presents as a serious and potentially fatal viral illness. Transmitted mostly through the bite of infected mosquitoes, this ailment affects human beings globally, particularly across the tropics and subtropical areas. Manifestations can range from mild to severe, including fever, headache, muscle aches, nausea, vomiting, and jaundice.

Pneumonia is a/happens to be/presents as an infection that inflames the air sacs in one or both lungs. These air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills, shortness of breath, and chest pain. Pneumonia can be caused by a variety of organisms, including bacteria, viruses, and fungi. In mos