Yellow fever presents as a serious and potentially fatal viral illness. Spread primarily through the bite of infected mosquitoes, this disease affects human beings globally, particularly in tropical and subtropical areas. Signs differ greatly from mild to severe, such as fever, headache, muscle aches, nausea, vomiting, and jaundice. In serious case

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, difficulty breathing, and sharp pains in the chest. Pneumonia can be caused by a variety of organisms, including bacteria, viruses, and