PREVALENCIA DE LA INFECCIÓN TOXOPLÁSMICA EN CERDOS EN EL

Avances en Ciencias Veterinarias – Vol. 6, No. 2: 166-171, 1991.
PREVALENCIA DE LA INFECCIÓN TOXOPLÁSMICA EN CERDOS EN EL
URUGUAY Y SU SIGNIFICACIÓN ZOONOTICA.
Alvaro Freyre Mc.C. (M.V), Alicia Colombo S. (M.V),
José Miguel D´Angelo H. (M.V), Jesús Falcón B. (M.V).
PREVALENCE OF TOXOPLASMIC INFECTION IN SWINE IN URUGUAY
AND ITS ZOONOTIC SIGNIFICANCE.
Seventy per cent of 600 pigs weighing 90 kg. had anti-Toxoplasma antibodies, as
measured with the Sabin and Feldman reaction. Diaphragm specimens from pigs with
titers of 1:64 and1: 256 were inoculated in mice, and those from pigs with titers of1:16
were fed to two Toxoplasma free kittens. Both mice and kittens were infected with
Toxoplasma. Therefore, titers of 16 and higher were considered an indication of
toxoplasmic infection in pigs. It was found that there are not cross-reactions in the
Sabin and Feldman reaction in pigs with Sarcosporidia.
Correlation of titers and isolation of Toxoplasma, prevalence of infection in foreign
countries, interpretation of titers distribution, and resistance of Toxoplasma in pork are
discussed. The prevalence found is high. Beef is not an effective source of toxoplasmic
infection. Mutton and chicken are usually well cooked in Uruguay. On the basis of this
information, it is concluded that pork is the most important source of toxoplasmic
infection with cysts in Uruguay, even though it is not the most frequently consumed
meat, and the oocysts transmission pattern is widely operative in Montevideo, at least
during childhood.
Palabras clave: Toxoplasma, cerdos, zoonosis.
Key words: Toxoplasma, swine, zoonose.