Information from a set of files detail how Britain was researching human and animal biological warfare techniques during World War II.

The human disease included typhoid and cholera, while animal disease consisted of foot-and-mouth, swine fever and anthrax (which is obviously also harmful to humans).

The reports specify that the research was a potential retaliation to any biological weapons released by the Nazis. Information on potential delivery and the spread of infection was also listed, with specific details about each biological weapon covered. These techniques include infecting reservoirs from the air, though it does mention thi may not work due to the chlorination process that takes place.