Andrew J.W Macarthur

Andrew J.W Macarthur
Chief Executive Officer
Academic Qualifications: AdDipAg, MBA (Bond University), FAICD
Andrew Macarthur and his family are the owners Plasvacc & Plasvacc USA Inc. He holds the position of Chief Executive Officer. Under his leadership the company has grown to now have production operations in 3 countries and exports to 15. Mr Macarthur has extensive management and consultancy experience in the area of agribusiness. He owns and oversees several rural properties and is a respected cattle & horse breeder.
Mr Macarthur previously held the position of general manager of pastoral operations at Stanbroke Pastoral Company, Australia’s largest pastoral company, which is recognised as being at the forefront of livestock research.
Mr Macarthur is Chairman of the board of Globe Management Group Pty Ltd, an asset management company plus a number of private companies across a wide range of industry sectors. Mr Macarthur holds a Masters of Business Administration from Bond University.
Sanjaya Unantenna

Sanjaya Unantenna
Financial Controller
Academic Qualifications: B.Bus (Acc), CPA, ACMA
Sanjaya Unantenna joined Plasvacc in April 2012.
Mr Unantenna has more than 17 years experience in financial and management accounting in medium to large companies both in Australia and overseas. His previous role was with a USA listed health management company where he was responsible for the financial and management reporting to USA and Australia. Prior to this role, he worked for more than 10 years in large agriculture related industries in Rockhampton, Toowoomba and Brisbane.
Peta O’Dwyer
Peta O’Dwyer
Production Manager
Peta O’Dwyer joined Plasvacc in February 2016.
Peta has worked in multiple positions within Plasvacc, firstly as an Apheresis Technician, then moving forward as a Quality Control Technician and Quality Assurance Manager within Plasvacc’s Laboratory. In 2020, Peta was promoted to Production Manager and is responsible for all matters relating to product manufacture and donor health as well as overall management of the production unit.
Peta grew up in a primary producing family in Bundaberg and has always had a passion for animals. Her life, with her husband, currently involves hands-on involvement within the Livestock Industry, selling and exhibiting led steers throughout Australia.
Tamara Maudsley

Tamara Maudsley
Office Manager
Tamara joined Plasvacc in November 2010. During this time her professionalism, hard work and dedication to the organisation led her to receive the award for the annual Rotary Club of Boonah Inc.’s “Pride of Workmanship”.
Tamara is a well-respected member of our team and her primary role is managing the day-to-day operations of our office as well as maintaining and developing office policies, procedures and systems. She has gained extensive skills in all aspects of the company and takes great pride in the delivery of her team’s exceptional service and administrative support to customers, suppliers and all other stakeholders. Tamara is also responsible for the supervision of shipping Plasvacc’s life-saving products within Australia and across the world.
Tamara is an animal lover at heart and resides in the region with her young family and chocolate Labrador.
Staff Veterinarians
The veterinarians at Plasvacc are responsible for the health and welfare of all donor animals, supervision of manufacturing processes and staff as well as providing training and direction to staff in areas of animal husbandry and care.
Dr Dave Nolan

Dr Dave Nolan
Staff Veterinarian
Academic Qualifications: BVSc, James Cook University
Dr Dave Nolan grew up on farmland in country Victoria, where the desire to work as a veterinarian developed at a very young age. Dave made the move to Townsville in 2009 to study Veterinary Science at James Cook University.
Prior to working at Plasvacc Dave worked in a mixed animal practice in Tasmania, with a particular focus on equine and cattle veterinary services. During his time in Tasmania a keen interest in equine dentistry began and developed through extensive post graduate training and clinical cases. At Plasvacc you will find Dave predominately with the large animals, providing dental services to our Equine plasma donors as well as general treatment and animal husbandry.
Dave has a Short Haired Pointer X Spaniel dog called Mac and a small mob of Dorper sheep. On his days off he enjoys spending time with his family, motorbike riding, hiking, camping and anything else that is outdoors.
Dr Michelle Hamilton

Dr Michelle Hamilton
Staff Veterinarian
Academic Qualifications: BVSc, BAppSc, James Cook University
Dr Michelle Hamilton has been a practicing veterinarian since she graduated from James Cook University in Townsville in 2011. Michelle’s love and passion for animals began when she was just a girl living in outback Queensland around Tambo and Charleville. With a menagerie of animals and her mother a vet nurse, Michelle developed an interest in becoming a vet from a young age.
Michelle’s love and passion for animals really shines through when providing care and treatment for Plasvacc’s donor animals. Michelle also has a keen interest in canine dentistry, and can often be found providing top dental care to our canine donors.
Michelle resides locally on her farm with several pets, including cattle, horses, working dogs, a cat and goldfish. In her spare time, Michelle enjoys working on her old house, fencing, chasing cattle, or driving around Australia on 4wd camping adventures with her family.
Dr Amy Neale
Dr Amy Neale
Staff Veterinarian
Academic Qualifications: BVSc, James Cook University
Dr Amy Neale grew up in Palm Beach on the Gold Coast and after finishing school moved to Far North Queensland to study at James Cook University. After graduating Veterinary Science in 2018 she moved to the small country town of Collie in Western Australia.
Amy is very passionate about providing the utmost care to all of our Plasvacc donor animals. As Amy particularly enjoys caring for small animals, she can usually be found with our beautiful canine donors.
When the weather is warm Amy loves to spend time at the beach, or out hiking or camping.
Dr Jaco Joubert
Dr Jaco Joubert
Staff Veterinarian
Academic Qualifications: BVSc, James Cook University
Dr Jaco Joubert grew up on the border of the Kruger National Park in South Africa and moved to North Qld with his family in 2008. Jaco Graduated from James Cook University, Townsville in 2013 and started life as a mixed practice Veterinarian in Mackay. Having a love of equine veterinary work, Jaco moved to Beaudesert and spent 3 years in a busy equine practice.
At Plasvacc you will find Jaco predominately with the large animals providing the utmost care, treatment and general animal husbandry.
Outside of work Jaco enjoys spending time with his family and their dogs on their farm in Milora where they have Droughtmaster cattle and horses.
Dr Sarah Mitchell
Dr Sarah Mitchell
Staff Veterinarian
Academic Qualifications: BVSc, James Cook University
Sarah is a new graduate from JCU that started at Plasvacc in January.
Sarah and her partner are new to the Scenic Rim, moved from Townsville and now lives at Radford with their rescue mastiff cross.
Sarah enjoys hiking and being social on weekends.