In 1915 she was named a research associate at the Rockefeller Institute for Medical Research in Princeton, where she spent summers studying tissue culture techniques. Erdmann was able to successfully culture chicken bone marrow cells as part of her attempts to attenuate the cyanolophia virus.[8] These studies were important for future work in hematology and virology. In addition, her work on the survival of Paramecium cultures led to important insights on cellular senescence and methods of genetic transmission [9]