From 1900 to 1909 he was laboratory chief at the Pasteur Institute.

He spent most of his career at the Pasteur Institute.

From 1895 until 1914 he was chief of anti-rabies services at the Pasteur Institute.

Centers such as Pasteur Institute are now being used for research purposes.

In 1929 he went to Paris to work at the Pasteur Institute.

From 1905 to 1914 he was in charge of the laboratory at the Pasteur Institute.

Since 2004 he is working at the Pasteur Institute of Paris.

Here he founded a Pasteur Institute and became the first director of the same.

He became a full member of the Pasteur Institute in 1895.

In 1918 he was appointed director of "vaccine services" at the Pasteur Institute.