The use of suckling mice was not Dalldorf's idea but was brought to his attention in a paper written by Danish scientists Orskov and Andersen in 1947, who were using such mice to study a mouse virus.
O uso de ratos lactantes non foi idea de Dalldorf, senón que se lle ocorreu ao ler unha publicación dos científicos daneses Orskov e Andersen de 1947, os cales utilizaron ese tipo de ratos para estudar un virus dos ratos.