Relationships between climate and year-to-year variability in meningitis outbreaks: A case study in Burkina Faso and Niger

Table 1 Summary of epidemiological and environmental datasets

	Type of data	Available data period	Used data period	Available time/space scale	Used time/space scale
1	Meningitis cases	1939-today	1966–2005	Weekly/Health unit	Annual/Country
2	Environmental variables	1948-today	1968–2005	4 values per day/grid-spacing of 2.5° latitude by 2.5° longitude	Monthly/Country

The discrepancies between available and used data are justified in the Materials and Methods section.

ISSN: 1476-072X