Swollen lymph nodes
One of the symptoms of bacterial infection is swollen lymph node, which occurs as a result of infection from bacteria. Swollen lymph node (lymphadenopathy) [2] acts as a filter that helps the body get rid of germs that pass through the lymph fluid. These are immune system glands that would respond to bacterial infections, which causes them to expand. Lymph nodes are not particularly visible. Once they become swollen, they become quite visible in some areas of the human such as behind the ear, the neck, or groin, which would eventually become visible as bumps.
Chest Pain and Difficulty in Breathing
Chest pain is another cause of bacterial infection. Tuberculosis bacteria growing in the lungs can cause a bad cough and also pain in the chest. The situation where one is unable to inhale or exhale enough oxygen can cause difficulty in breathing due to bacterial infection. Breathing difficulty can be a sign of a medical condition and can also be a result of been anxious. Breathing difficulties can be traced to several abnormalities in the lungs and airways.