Gustav Giemsa, German chemist and bacteriologist (died 1948)

Berthold Carl Gustav Giemsa was a German chemist and bacteriologist who was a native of Medar-Blechhammer. He is best known for creating a dye solution commonly known as "Giemsa stain" which is used in staining for use in the histopathological diagnosis of malaria and parasites such as Plasmodium, Trypanosoma, and Chlamydia.