Vaccine could not have been prepared in Stanleyville

In Stanleyville, at the time of vaccination campaigns, tissue cultures were primitive, experimental and used solely for diagnostic purposes. Productio n of vaccine was impossible to carry out. A few chimpanzee kidneys were min ced and sent to Philadelphia as part of the hepatitis experiments of Dr Dei nhardt. Vaccine was never handled in my laboratory and contamination with c himpanzee cells was not possible.