Vaccination for immunization against typhus using the following vaccines:
1. 31 persons with Weigl vaccine from the intestines of lice from the Institute for Typhus and Virus Research of the Army High Command, Krakow.
2. 35 persons with vaccine from vitelline membrane cultures made by the Cox, Gildemeister, and Haagen process.
3. 35 persons with vaccine “Behring Normal” (1 egg in an emulsion of 450 cc. vaccine. Mixture of 70 percent Rickettsia Mooseri and 30 percent Rickettsia-Prowazeki).
4. 34 persons with “Behring Normal” “Behring Strong” (1 egg emulsified in 250 cc. solvent).
5. 10 persons for control.
3 Mar 42:
All persons vaccinated for immunization between 6 Jan 42 and 1 Feb 42, and the 10 control persons were infected with a virus culture of Rickettsia-Prowazeki in the presence of Professor Gildemeister. SS Hauptsturmfuehrer Dr. Ding infected himself in the process (laboratory accident).
17 Mar 42:
Visit of Professor Gildemeister and Professor Rose (Head of the Department for Tropical Medicine in the Robert Koch Institute) to the experimental station. All persons experimented on fell sick with typhus except two who, as was established later, had already had typhus during an epidemic at the police prison in Berlin. SS Hauptsturmfuehrer Dr. Ding fell sick with typhus and is in the hospital in Berlin. SS Hauptsturmfuehrer Hoven, station medical officer of the Waffen SS in Weimar, is supervising the stations in the meantime (Blocks 44 and 49).