Pneumonia is a common respiratory infection that inflames the air sacs. These compartments can fill with fluid or pus, resulting in a persistent cough, fever, difficulty breathing and aches in the chest. Pneumonia can range from mild to serious. This infection happens when bacteria, viruses, or fungi infect the air sacs in your lungs. There are se

Yellow fever is a dangerous viral illness transmitted through the bite of infected biting flies. Primarily found in tropical and subtropical regions of Africa and South America, this potentially fatal illness can cause intense symptoms such as heat, jaundice, muscle aches, and vomiting. There is no cure for yellow fever, but a vaccine offers stron