1. Veterinary Diagnostic Laboratory; Marupi Lifetech, 103 Fushiocho, Ikeda Osaka 563-0011 Japan
2. Sukagawa Animal Hospital; 44-11 Morijuku, Sukagawa Fukushima 962-0001 Japan
3. Department of Microbiology; School of Veterinary Medicine; Azabu University; 1 -17-71 Fuchinobe, Sagamihara Kanagawa 229-8501 Japan
4. AQS; 1855-2 Komaino, Narita Chiba 286-0121 Japan
5. Central Research Laboratories; Intervet, 1103 Fukaya, Kasumigaura Ibaraki 300-0134 Japan