Yes. There are more than 100 known serotypes of pneumococcus. Infection with one serotype does not necessarily produce immunity to other serotypes. As a result, if the person is a candidate for vaccination, they should receive it even after one or more episodes of pneumococcal disease.
Last reviewed:
November 13, 2024
Influenza virus is easily spread from healthcare workers to their patients, and infection usually leads to clinical illness. Pneumococcus is probably not spread from healthcare workers to their patients as easily as is influenza, and infection with pneumococcus does not necessarily lead to clinical illness. Host factors (such as age, underlying illness) are more important in the development of invasive pneumococcal disease than nasopharyngeal colonization with the organism.
Last reviewed:
November 13, 2024
PCV vaccines are conjugated to a type of diphtheria toxoid. If someone has a history of anaphylaxis following diphtheria-containing vaccine, it might be due to the diphtheria toxoid, and the cause of the anaphylactic allergy should be identified before the administration of a PCV vaccine. This could be difficult since no single-antigen diphtheria toxoid is available in the U.S. Fortunately, true anaphylactic allergy to diphtheria-containing vaccine is rare.
Last reviewed:
November 13, 2024
