A Computational Framework for Influenza Antigenic Cartography

doi:10.1371/journal.pcbi.1000949

A Computational Framework for Influenza Antigenic Cartography

Figure 2

Data distribution in the H3N2 HI dataset.

Three types of data are present in HI data: type I, a regular HI titre marked in red cross; Type II, the value is defined as ‘less than a threshold’, e.g. , where , and these values indicate the testing antigen and antiserum have a weak (or low) immunological reaction. Type II values are marked in green diagonal cross; Type III, missing values, which are blank. This HI dataset includes entries, which represent data presence. Among these entries, () are Type II values.

doi: https://doi.org/10.1371/journal.pcbi.1000949.g002