Serological study of listeriosis in domestic animals in São Paulo-Brazil
Teruya, J.M.; Santa Rosa, C.A.; Giorgi, W.; Yanaguita, R.M.
International Journal of Zoonoses 4(1): 21-24
1977
ISSN/ISBN: 0377-0168 PMID: 407169 Document Number: 119927
A serological examination was carried out for Listeria monocytogenes antibodies on 7809 cattle, 838 horses and 671 swine in Sao Paulo, Brazil. Serum agglutination in tubes was the method used. Only somatic antigens from serotypes 1, 2, 3, 4a and 4b were employed. Sera reacting at titers of less than 1/320 were regarded as suspicious; those sera with titers of 1/320 of greater were regarded as positive. In cattle 17.8% were suspicious but only 8 sera were positive for types 1, 2 and 4b. Only type 1 was found in horses, 22.7% being suspicious and 11 being positive. For swine 13.3% were suspicious but none was positive.