What to Know About COVID Variants
Viruses with variants aren’t anything new. The COVID-19 variants are a concern because some of them are more contagious, more deadly, and may lead to vaccine failures.
strains
Pneumococcal Vaccines vs Pneumococcal Strains and Disease
Pneumococcal vaccines provide protection against the provide protection against the Pneumococcal strains and serotypes that cause most severe pneumococcal disease, like meningitis, pneumonia, and sepsis!