People with asthma or COPD are at higher risk for serious problems from certain vaccine-preventable diseases. Getting vaccinated is an important step in staying healthy. If you have lung disease, talk with your doctor about getting your vaccinations up-to-date.COPD and asthma cause your airways to swell and become blocked with mucus, which can make it hard to breathe. Certain vaccinepreventable diseases can also increase swelling of your airways and lungs. The combination of the two can lead to pneumonia and other serious respiratory illnesses.