Pneumonia is an frequent respiratory infection that inflames the air sacs. These pockets can be laden with fluid or pus, resulting in symptoms of cough, fever, shortness of breath and aches in the chest. Pneumonia can vary in severity from mild to serious. This infection happens when bacteria, viruses, or fungi attack the alveoli in your chest. Th

Yellow fever is a serious viral disease transmitted through the bite of infected mosquitoes. Primarily found in tropical and subtropical regions of Africa and South America, this life-threatening illness can cause severe symptoms such as heat, jaundice, muscle aches, and throwing up. There is no cure for yellow fever, but a vaccine offers strong p