Donors must have suitable blood type (meeting UC Davis criteria for plasma donors), and test negative to:
- Equine Infectious Anemia (EIA)
- Equine Viral Arteritis (EVA)
- Dourine
- Glanders
- Brucellosis
- Piroplasmosis
- EHV-1
- Equine Parvovirus-Hepatitis
To maintain herd health all donors are frequently immunized for:
- Equine Influenza
- Tetanus
- Rhinopneumonitis (Equine Herpes Virus)
- Clostridium botulinum Serotype B Toxin
- Rabies
- Streptococcus equi
- Potomac Horse Fever
- Escherichia coli
- West Nile Virus
- Equine Rotavirus
- Salmonella
- Rhodococcus equi
- Eastern and Western Encephalomyelitis
- Clostridium perfringens Type C, & D