Table 1. Summary of foreign and endemic animal disease target viruses and their respective surrogates.

FAD target virus	Surrogate virus	Viral Family	Genome	Outer membrane	Size
Foot and Mouth Disease Virus	Seneca Virus A	Picornaviridae	ss RNA	Non-Enveloped	25–30 nm
Classical Swine Fever Virus	Bovine Virus Diarrhea Virus	Flaviviridae	ss RNA	Enveloped	40–80 nm
Pseudorabies Virus	Bovine Herpesvirus-1	Herpesviridae	ds DNA	Enveloped	150–200 nm
Vesicular Exanthema of Swine Virus	Feline Calicivirus	Caliciviridae	ss RNA	Non-Enveloped	35–40 nm
Nipah Virus	Canine Distemper Virus	Paramyxoviridae	ss RNA	Enveloped	150–200 nm
Swine Vesicular Disease Virus	Porcine Sapelovirus	Picornaviridae	ss RNA	Non-Enveloped	25–30 nm
Vesicular Stomatitis Virus	Not applicable*	Rhabdoviridae	ss RNA	Enveloped	75 nm x 180 nm
Porcine Reproductive and Respiratory Syndrome Virus	Not applicable*	Arteriviridae	ss RNA	Enveloped	45–60 nm
Porcine Circovirus type 2	Not applicable*	Circoviridae	ss DNA	Non-Enveloped	10–20 nm
African Swine Fever Virus	Not applicable*	Asfarviridae	ds DNA	Enveloped	175–215 nm
Influenza A Virus	Not applicable*	Orthomyxoviridae	ss RNA	Enveloped	80–120

* = No surrogate virus used. Actual pathogen was used in these cases.