Allegations of Biological Weapons Use - Deadly Cultures: Biological Weapons Since 1945 - page 278

logical data confirm that the prevailing winds were from the northwest
for all of 2 April, confirming an aerosol exposure on the afternoon of 2
April. 119
This conclusion is further confirmed by the location of animal anthrax
cases. The animal cases had originally been used as evidence in support
of the intestinal anthrax scenario, but careful investigation showed that
they occurred at the same time as, not before, the human outbreak. In
striking confirmation of aerosol exposure, all lay on an extension of the
same axis along which the human cases were found (figure 13.2).

N

5.0 m/sec

Sverdlovsk

2.5

E

W

22

H

4,13

V

10

1 16,
19

Compound 19

Local Time (hours)

V V

V

V

10 km

V

Figure 13.2 Location of human (H) and veterinary (V) cases of anthrax
in the Sverdlovsk area in April-May 1979. Inset: direction and strength of
winds at Sverdlovsk airport on 2 April 1979. (Source: Matthew Meselson
et al., “The Sverdlovsk Anthrax Outbreak of 1979,” Science, 266 [1994],
1202-08.)