There are two types of vaccines used in the United States to help prevent pneumococcal disease in adults: conjugate and polysaccharide vaccines. CDC recommends pneumococcal conjugate vaccination (PCV15 or PCV20) for all adults 65 years or older and adults 19 through 64 years old at increased risk for pneumococcal disease if they have never received a pneumococcal conjugate vaccine before. If PCV15 is used, this should be followed by a dose of polysaccharide vaccine (PPSV23). Adults who received an earlier pneumococcal conjugate vaccine (PCV13 or PCV7) should talk with a vaccine provider to learn about available options to complete their pneumococcal vaccine series. Adults 65 years or older have the option to get PCV20 if they have already received PCV13 (but not PCV15 or PCV20) at any age and PPSV23 at or after the age of 65 years old These adults can talk with their doctor and decide, together, whether to get PCV20. In addition, getting an influenza (flu) vaccine every year can help because having flu can increase your chances of getting pneumococcal disease.