Article
Clonal expansion within pneumococcal serotype 6C after use of seven-valent vaccine.
PloS one - 1 Jan 2013
Loman Nicholas J, Gladstone Rebecca A, Constantinidou Chrystala, Tocheva Anna S, Jefferies Johanna M C, Faust Saul N, O'Connor Leigh, Chan Jacqueline, Pallen Mark J, Clarke Stuart C
Abstract excerpt
Streptococcus pneumoniae causes invasive infections, primarily at the extremes of life. A seven-valent conjugate vaccine (PCV7) is used to protect against invasive pneumococcal disease in children. Within three years of PCV7 introduction, we observed a fourfold increase in serotype 6C carriage, predominantly due to a single clone. We determined the whole-genome sequences of nineteen S. pneumoniae serotype 6C...
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