Every three years, the Royal Society recognises excellence in the fields of microbiology, bacteriology, virology, mycology, parasitology, and microscopy by offering the Leeuwenhoek Lecture prize. For more on this lectureship prize, visit Leeuwenhoek Lecture at the Royal Society.
For a more on the prize and why Leeuwenhoek is honored in this way, read The Leeuwenhoek Lecture 1988. Antoni van Leeuwenhoek 1632-1723 (pdf) by A.R. Hall, FBA.