Pneumonia is a common respiratory infection that inflames the alveoli. These compartments can be laden with fluid or pus, leading to coughing, fever, difficulty breathing and discomfort in the chest. Pneumonia can vary in severity from mild to severe. This infection happens when bacteria, viruses, or fungi invade the alveoli in your lungs. There a

Yellow fever is a critical viral illness transmitted through the bite of infected insects. Primarily found in tropical and subtropical regions of Africa and South America, this life-threatening illness can cause debilitating symptoms such as heat, skin discoloration, muscle aches, and vomiting. There is no cure for yellow fever, but a vaccine offe