indices for Central Europe’,

Journal of Interdisciplinary History,

10: 665-96.

Twigg, G. (1978) 'The role of rodents in plague transmission: A worldwide review’,

Mammal Review,

8: 77-110.

Twigg, G. (2003) 'The Black Death: A problem of population-wide infection’,

Local Population Studies,

71: 40-52. Covers evidence that the black rat was not present in rural England during the plague.

A detailed account of the array of newly emerging diseases in a world out of balance is given by Garrett, L. (1994)

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