Airborne transmission of common swine viruses

Table 1 Characteristics and influential factors of aerosol transmission for different swine viruses

Category	Virus	Diameter (nm)	Distance of transmission	Viral loads in aerosols	Experimental evidence	Field evidence	Influential factors
Long-distance	FMDV	26	300 km [18, 19]	10^5.8–10^6.4TCID₅₀ [24]	Yes [24]	Yes [17, 19]	Viral strain, host species, weather condition, geographical condition, environmental condition, contract structure
	PRRSV	60	9.2 km [30]	6 × 10²–5.1 × 10⁴copies /m³ [35]	Yes [28, 29]	Yes [30]	Viral strain, mixed pathogen, aerosol particle size, environmental condition
	IAV	80–120	2.1 km [40]	10⁴–10⁷ copies/m³ [39]	Yes [41]	Yes [40]	Viral strain, aerosol particle size, environmental condition,
	PEDV	95–190	16.1 km [51]	1.3 × 10⁶–3.5 × 10⁸copies/m³ [35]	Yes [54]	Yes [51]	Viral strain, aerosol particle size, wind direction, age of susceptible animals
	PRV	225	13.8 km [60]	10^5.3 TCID₅₀ [59]	Yes [59]	Yes [60]	Unknown
Short-distance	CSFV	40–50	1 m [65]	10^1.2–10^3.8TCID₅₀/m³ [70]	Yes [65]	Yes [64]	Viral strain, viral dose, RH, wind speed
Short-distance	ASFV	200	10 m [78]	10^3.2 TCID₅₀/m³ [81]	Yes [76, 77]	Yes [78]	Unknown
Others	PCV	17	Unknown	10⁷ copies/m³ [84]	Unknown	Yes [84]	Unknown
	SVDV	24–26	Unknown	10^1.4–10^2.6 TCID₅₀ [89]	Unknown	Yes [89]	Unknown
	JEV	50	Unknown	Unknown	Yes [97]	Unknown	Unknown
	PRCV	100–160	Unknown	10^1.87PFU/m³ [104]	Yes [105]	Unknown	Unknown

ISSN: 2055-5660