Cogger completed a PhD titled Epidemiology of musculoskeletal injuries in two and three year old Australian thoroughbred racehorses at the University of Sydney in 2006.
[1] Cogger then joined the faculty of Massey University, and was appointed Professor of Epidemiology in 2022.
[2] Cogger is the Director of Massey's EpiCentre, which was established in 1986 as an "international focus group for veterinary epidemiology and public health".
Cogger has also developed and delivered training programmes for medical and veterinary staff to recognise and respond to diseases.
[2][4] Cogger initially worked on diseases that impact equine health, and injuries and conditions affecting racehorses.