Inhalation may cause coughing, sneezing, labored breathing. Symptoms include episodes of wheezing, coughing, chest tightness, and shortness of breath. Coughing and sneezing can intensify the pain. It feels worse with deep breathing, coughing, sneezing, or laughing. Influenza viruses are spread by coughing and sneezing. Early symptoms of exposure often presented with persistent coughing and wheezing. The bacteria are usually spread by people coughing or sneezing. It is also used for reflexes such as yawning, coughing and sneezing. Other symptoms include shortness of breath, coughing up blood, and chest pain. Symptoms include shortness of breath, weakness, fever, coughing and fatigue. This can lead to nausea and vomiting, regurgitation of food and coughing. It is easily passed through the air by sneezing, coughing, or simply talking. News reports tell of passengers coughing and gasping for breath. Coughing up mucus tinged with blood, needs medical advice. Codeine is an opiate used to treat pain, coughing, and diarrhea.