Dr Andrew Waller

Head of Bacteriology Research

Andrew’s research is dedicated to improving the health of animals by reducing the incidence of streptococcal disease, such as Strangles.

Strangles, caused by Streptococcus equi, is the most commonly diagnosed infectious disease of horses worldwide and is of major welfare and economic importance. This bacterium evolved from Streptococcus zooepidemicus, an opportunistic pathogen of many different animals including horses, dogs, ruminants and humans.

Andrew’s research centres on the exploitation of emerging Streptococcus equi and Streptococcus zooepidemicus genome sequence information to capture pathogen evolution and identify key virulence determinants that can be exploited as novel vaccine and diagnostic targets.

Expertise and Interest

Visiting Professor: University of Northumbria.

Editorial Board Member: The Veterinary Journal.

Scientific Advisory Committee Member: PetPlan Charitable Trust


Andrew gained his DPhil at the University of York in 1996 before joining British Biotech Phamaceuticals Limited. Here he developed an interest in bacterial genetics, towards the development of new antimicrobial agents, which he has built on since joining the Animal Health Trust in June 2003 as Head of Bacteriology.