Yellow fever presents as a serious and potentially fatal transmissible illness. Transmitted mostly through the bite of infected mosquitoes, this disease affects people globally, particularly across the tropics and subtropical areas. Signs vary widely from mild to severe, including fever, headache, muscle aches, nausea, vomiting, and jaundice. For s

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