SUGIYAMA Makoto Fac. Agri., Gifu Univ., Associate-Researcher, 農学部, 助手 (80196774)
MINAMOTO Nobuyuki Fac. Agri., Gifu Univ., Assoc. Prof., 農学部, 助教授 (10144007)
HIRAI Katsuya Fac. Agri., Gifu Univ., Professor, 農学部, 教授 (30021702)
|Budget Amount *help
¥6,100,000 (Direct Cost: ¥6,100,000)
Fiscal Year 1991: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1990: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1989: ¥2,900,000 (Direct Cost: ¥2,900,000)
1. Japanese serows (237 cases) : Seropositive rates for each agent were 20.1% for rotavirus, 10.7 for Chlamydia psittaci, 10.4 for Leptospiia spp., 5.4 for Toxoplasma gondii and 31.6 for parapox virus, which was isolated by us from serows' papular stomatitis. No antibody for Japanese encephalitis virus and Brucella abortus was detected.
2. Monkeys (443 cases) : Antibodies were detected in 70.0% for rotavirus, 12.6 for C. psittaci, 2.9 for Leptospira spp., 39.9 for Campylobacter jejuni, 8.9 for Yersinia pseudotuberclosis and 3.6 for T. gondii. Antibodies to SV 40, which was isolated by us from a monkey That died of unknown disease, were, detected in 89.1% of native monkeys but not in imported ones. Isolation frequencies of Campylobacter and Yersinia were 10.0% and 6.4%, respectively.
3. Rats (368 cases) : Prevalence of antibodies for each agent were 3.8% for rotavirus, 0.2 for hantavirus, 12.9 for C. psittaci, 8.1 for Leptospira spp., 15.8 for C. jejuni, 8.2 for T. gondii. Isolation frequencies of agents were 19.5% for Campylobacter and 8.4% for Yersinia, but no Leptospira spp. was isolated from kidneys. Angiostrongylus cantonensis was detected in lungs of 4 of 157(2.5%)rats.
4. Feral pigeons (621 cases) : Pigeon rotavirus was first isolated by us and antibodies to this agent were detected in 32.4%. Chlamydial antibody was detected in 34.9%, and the agent was isolated from 0.8%. No antibody to C. jejuni could be demonstrated, but 23.7% of the birds were shown to excrete the bacteria.
5. Similar results were obtained in other species of wild animals and also companion and farm animals.
The results obtained might indicate that reservoirs of zoonosis agents are widely distributed among wild animals and that wild animals are very important for prevention and control of zoonoses.