I need some opinion on this situation. Patient who is 66 yo comes in wanting a pneumonia shot along with flu shot. Pharmacy carries prevnar 13. It says patient can get prevnar if they never had a pneumonia shot but I also found out elsewhere that its recommended for patients who never had a pneumonia shot to get the pneumovax 23 for patient over 65. I know pneumovax 23 covers more serotypes, would you give the prevnar since its the only available at that moment?