Pneumonia is a contagious respiratory infection that causes inflammation in lungs. It is typically caused by bacteria, viruses, fungi, parasites, and irritants (smoke, chemicals). People who are most susceptible are those who are of a certain age, have a weak immunity, or suffer from chronic diseases. “With seasonal changes and increasing pollution levels, we are seeing a concerning spike in pneumonia cases, especially in children,” Dr Rakesh Tiwari, senior consultant-paediatrics at Paras Health, Gurugram warns. Scroll down to know about the six best foods that can lower the risk of pneumonia.