Table A7.

Flock SLRV prevalence in each continent from 1991 to 2000.

Continent	Studies	N	Prevalence		Range
			Mean	CI 95%	Min	Max
Africa	0	0	N/A 1	N/A	N/A	N/A
Asia	1	73	32.88	23.19–44.27	32.88	32.88
Europe	8	445	11.01	8.43–14.26	0.00	100.00
North America	15	357	53.22	48.04–58.34	20.00	100.00
South and Central America	0	0	N/A	N/A	N/A	N/A
Global	24	875	30.06	27.11–33.18	0.00	100.00

¹ N/A, not applicable.