7C_ST177
Emergence and rapid expansion of pneumococcal serotype 7C due to clonal expansion of sequence type 177 (ST177)
Serotype 7C is a rare cause of invasive pneumococcal disease (IPD) in England and Wales. However, in early 2017, we observed a sudden and rapid increase in 7C IPD due to what was almost entirely an association with clonal expansion of ST177, and ST previously associated with vaccine serotype 19F. We carried out epidemiological and genomic investigations on the 7C strains.
Serotype 7C is a rare cause of invasive pneumococcal disease (IPD) in England and Wales. However, in early 2017, we observed a sudden and rapid increase in 7C IPD due to what was almost entirely an association with clonal expansion of ST177, and ST previously associated with vaccine serotype 19F. We carried out epidemiological and genomic investigations on the 7C strains.