2022 World Pneumonia Day: Today is ‘World Pneumonia Day’. Pneumonia is a respiratory disorder caused by inflammation of the air sacs in one or both lungs. In this, these air sacs get filled with fluid or pus, due to which symptoms like fever, chest pain, cough, chills, fatigue, vomiting, nausea can appear along with difficulty in breathing. This fluid is called mucus. It is caused by bacteria, fungi and viruses. Pneumonia is more common with infants and the elderly because their immunity is weak. In case of pneumonia, special care should be taken of food, so that the symptoms are not triggered. There are some foods, whose consumption can provide relief in pneumonia. Lungs are healthy, immunity is strong, which helps in fighting infection.