Evidence of Antibodies against the West Nile Virus and the Usutu Virus in Dogs and Horses from the Southeast of France

Table 1

Result of ELISA and serum neutralisation tests according to animal species and geographical origin.

Region	Department	Location	Date	Dogs						Horses
				Number	ELISA flaviviruses positive (%)	SNT WNV positive (%)	SNT USUV positive (%)	SNT doubtful (%)	SNT WNV and/or USUV positive (%)	Number	ELISA flaviviruses positive (%)	SNT WNV positive (%)	SNT USUV positive (%)	SNT doubtful (%)	SNT WNV and/or USUV positive (%)
South East	Hérault	Mireval, Vic-La-Gardiole, Villeneuve-lès-Maguelone, Fabrègues	April 2022	150	32 (21.3%)	3 (2%)	1 (0.6%)	0	4 (2.6%)	106	6 (5.6%)	1 (0.9%)	0	1 (0.9%)	2 (1.8%)
	Bouches-du-Rhône	Marseille	June 2022	47	0					42	0
		Le Paty (Camargues)	January 2021	45	9 (20%)	4 (8.8%)	3 (6.6%)	2 (4.4%)	9 (20%)
		Miramas	January 2021	26	2 (7.6%)	2 (7.6%)	0	0	2 (7.7%)
		Salon-de-Provence	January 2021	20	4 (20%)	1 (5%)	0	3 (15%)	4 (20%)
		Total B-d-R		138	15 (10.8%)	7 (5%)	3 (2.2%)	5 (3.6%)	15 (10.8%)	42	0
	Var	Hyères	January 2021	22	7 (31.8%)	4 (18.1%)	0	2 (9%)	6 (27.2%)
	Total South East			310	54 (17.4%)	14 (4.5%)	4 (1.3%)	7 (2.2%)	25 (8%)	148	6 (4%)	1 (0.7%)	0	1 (0.7%)	2 (1.4%)
South West	Lot	Gramat (NE)	January 2021	48	0
North	Seine-et-Marne	Fontainebleau (NE)	May 2022							50	0

Military animals (i.e., dogs or horses) and SNT doubtful where animals are positive for either WNV and/or USUV. NE: nonexposed sites to the risk of transmission.