[Mitchell]

Here is a report on the 1978-1980 anthrax outbreak in Zimbabwe. (It's from the Physicians for Social Responsibility and appears on the International Physicians for the Prevention of Nuclear War web site; I don't know if a version has appeared in a refereed medical journal. I'd much prefer an unbiased, refereed source for a scientific article, but this is what I have.)

Here's the beginning of the report (click on the link for the rest):

Anthrax Epizootic in Zimbabwe, 1978-1980: Due to Deliberate Spread?

Meryl Nass, M.D.*

Abstract
The largest recorded outbreak of anthrax in humans occurred in Zimbabwe during its civil war, in 1979 to 1980. There were a number of unusual features of the epizootic. The disease spread over time from area to area, until six of the eight provinces were affected. Yet anthrax usually appears as a point source outbreak, without significant geographic spread. Only the African-owned cattle in the Tribal Trust Lands were affected; cattle belonging to whites were uninvolved. A critical review of the scientific explanations proposed to account for these events is presented. The possibility that the epizootic could have been a biological warfare event is evaluated. Finally, suggestions are advanced for further investigations into the origin of this epizootic. [PSRQ 1992;2:198-209]

[Mitchell]

I had meant to incolude your name in the the list of addressees for post #17 above (linking to a medical report on the Zimbabwe anthrax outbreak).