Yellow fever is a a serious and potentially fatal infectious illness. Carried mainly through the bite of infected mosquitoes, this condition affects individuals globally, particularly in tropical and subtropical areas. Symptoms vary widely from mild to severe, such as fever, headache, muscle aches, nausea, vomiting, and jaundice. In serious cases,

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 chest pain. Pneumonia can be caused by a variety of organisms, including bacteria, viruses, and fungi. In mo