Fig. 2

Proportion of serotypable lytA-positive samples (n = 607) by lytA cycle threshold value (Ct-value) among patients hospitalized with severe acute respiratory illness at Chris Hani-Baragwanath Academic Hospital, Soweto, South Africa, 2009–2012. Serotypable samples were samples tested with the serotyping assay from which a serotype/serogroup included in the assay was detected