Google Doodle celebrates Polish inventor Rudolf Weigl's 138th birthday. Who was he?

In today’s special Google Doodle, Rudolf Weigl is seen holding a test tube in his gloved hands. It is Rudolf Weigl’s 138th birthday today.

Google Doodle celebrated Polish inventor, doctor and immunologist Rudolf Weigl’s 138th birthday on September 2 with an animated graphic. Rudolf Weigl is renowned for producing the first effective vaccine against epidemic typhus, which is one of the oldest and most infectious diseases. In today’s special Google Doodle, Rudolf Weigl is seen holding a test tube in his gloved hands. There are drawings of lice and a human body on either sides of the wall. Google has been spelled on the doodle with bunsen burners, a microscope and beakers, placed on a lab table.