Streptococcus pyogenes, the same bacterium that causes strep throat, is responsible for most bacterial infections of tonsillitis ... Though people of all ages can develop tonsillitis, it is most often ...

-- Company Reported Positive Topline Safety, Tolerability and Immunogenicity Data from Phase 1/2 Study of VAX-31, its 31-Valent Pneumococcal Conjugate Vaccine (PCV) Candidate, in Adults Aged 50 and ...