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Volume 20, Number 3—March 2014
Historical Review

Drought and Epidemic Typhus, Central Mexico, 1655–1918

Jordan N. BurnsComments to Author , Rodolfo Acuna-Soto, and David W. Stahle
Author affiliations: University of Arkansas, Fayetteville, Arkansas, USA (J.N. Burns, D.W. Stahle); Universidad Nacional Autonoma de Mexico, Mexico City, Mexico (R. Acuna-Soto)

Main Article

Figure 3

Tree-ring–reconstructed summer Palmer Drought Severity Index (PDSI) during A) 22 and B) 15 typhus epidemics in Mexico, 1665–1918. Drought conditions are indicated by negative values on the PDSI scale. Reconstructed summer PDSI values during the 15 typhus epidemic years with the most negative PDSI values for central Mexico are mapped in panel B. JJA, June–July–August.

Figure 3. . . . Tree-ring–reconstructed summer Palmer Drought Severity Index (PDSI) during A) 22 and B) 15 typhus epidemics in Mexico, 1665–1918. Drought conditions are indicated by negative values on the PDSI scale. Reconstructed summer PDSI values during the 15 typhus epidemic years with the most negative PDSI values for central Mexico are mapped in panel B. JJA, June–July–August.

Main Article

Page created: February 19, 2014
Page updated: February 19, 2014
Page reviewed: February 19, 2014
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