Leprosy vaccine in wooden block with wrapping, by Burroughs Wellcome, English.

Made by Burroughs, Wellcome & Co and the Wellcome Physiological Research Laboratories, not much is known about the effectiveness of this vaccine. In 1986, leprosy vaccines were tested in Malawi, Africa, but further tests were needed. Today, the BCG vaccine is used in some countries but this treatment does not have universal approval.

Leprosy, also known as Hansen’s disease, is contagious, but few contract it. Leprosy is said to be difficult to catch and scientists are still researching how it is spread. It is shown here with another leprosy vaccine (A600194).