Influence of Two Vaccination Campaigns on Genetic Diversity of Invasive Neisseria meningitidis Isolates in Northern Spain (1997–2008)
Figure 2
Diversity of the meningococcal population in the Basque Country, north of Spain, 1997–2008.
The ratio between the number of isolates and four parameters (number of sequence types [ST], clonal complexes, alleles and polymorphic sites) is shown among 461 invasive meningococci.