Pneumonia is a pulmonary infection that inflames the air sacs in one or both lungs. These air sacs may fill with fluid, causing cough with phlegm or pus, fever, chills, and difficulty breathing. Various bacteria, viruses, and fungi can cause pneumonia. The most common causes include Streptococcus pneumoniae, influenza virus, and respiratory syncy

Yellow fever is a serious infectious disease transmitted by infected insects. It primarily affects tropical regions of the world, posing a significant health threat to residents. The signs of yellow fever can range from mild to debilitating, including fever, muscle soreness, headache, and jaundice. In rare cases, it can lead to liver damage and eve