February 06, 2026
Vax Facts Friday 2.6.2026
Q: Development of which vaccine slowed after the invention of antibiotics?
A. Influenza vaccine
B. Meningococcal vaccine
C. Pneumococcal vaccine
D. Rotavirus vaccine
The correct answer is C. Pneumococcal vaccine
Antibiotics to treat pneumococcal infections were discovered in the 1940s and caused interest in vaccine development to decline. However, when Streptococcus pneumoniae started to become antibiotic resistant, the importance of continuing to develop a vaccine for pneumococcal disease became apparent.
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