Leptospira infections in cattle at the territory of Belgrade in the period from 2000. to 2010

Abstract

Ispitivanja krvnih uzoraka goveda na leptospirozu obavljena su na velikim farmama u društvenom sektoru lociranim na četiri beogradske opštine: Palilula, Surčin, Zemun, Obrenovac kao i na individualnom sektoru gde je pored navedenih opština bilo uključeno još pet opština: Mladenovac, Grocka, Čukarica, Zvezdara i Lazarevac. Ispitivanje infekcije izazvane leptospirama kod goveda obavljena su u periodu od 2000. do 2010. godine, na teritoriji Beograda. Izvršen je serološki pregled 123.971 uzoraka krvi goveda. Broj seropozitivnih životinja iznosio je 1.132 (0,91%). Najveći broj seropozitivnih uzoraka goveda bio je utvrđen na opštini Palilula (498), zatim u opštini Surčin (245), u opštini Obrenovac (183), u Zemunu (177), a najmanji u opštini Zvezdara, samo dva. Kod goveda je dominirao serovarijetet Leptospira grippotyphosa koji je ustanovljen u 459 krvnih uzoraka (40,54%), zatim slede Leptospira icterohaemorrhagiae 356 (31,44%), Leptospira pomona 258 (22,79%), Leptospira bataviae 53 (4,68%) i Leptospira hardjo 6 (0,53%). U krvnim serumima goveda nisu utvrđena specifična antitela protiv L.canicola, L.sejröe i L.australis. Visina titra antitela na leptospire kretala se od 1:100 do 1:300000. Ispitivanje krvnih seruma goveda pokazala su da je procenat inficiranih životinja bio u rasponu od 2,82 do 0% što globalno gledano nije značajan procenat za ovu infekciju. Gledajući tok širenja oboljenja zapaža se da je on u opadanju počevši od 2000. godine kada je bio najveći (2,82%) što se može pripisati merama kontinuirane kontrole i eradikacije ove zoonoze.

Examining of blood samples on leptospirosis were carried out at big public property farms located in four Belgrade municipalities: Palilula, Surcin, Zemun, Obrenovac, as well as in private sector which, besides the above mentioned, included the additional five municipalities: Mladenovac, Grocka, Cukarica, Zvezdara and Lazarevac. Research on leptospira infections in cattle was carried out in the period from 2000. to 2010., at the territory of Belgrade. Serological examination of 123.971 cattle blood samples was done. The number of seropositive animals was 1.132 (0.91%). The biggest number of seropositive samples was noticed at Palilula (498), then in Surcin (245), Obrenovac (183), Zemun (177), and the least, only two in Zvezdara municipality. In the cattle, serovariety Leptospira grippotyphosa found in 459 blood samples (40.54%) dominated, then came Leptospira icterohaemorrhagiae 356 (31.44%), Leptospira pomona 258 (22.79%), Leptospira bataviae 53 (4.68%) and Leptospira hardjo 6 (0.53%). In cattle blood serums no specific antibodies against L.canicola, L.serjöe and L.australis were determined. Titre height of antibodies against leptospires ranged from 1:100 to 1:300000. Examining of cattle blood serums showed that the percentage of infected aminals ranged from 2.82 to 0%, what globally is not a significant percentage for this infection. Observing the disease course of spreading, it can be noticed that it has been decreasing since 2000. when it was at its peak (2.82%), what can be the result of a continual control, as well as of measures that are conducted with the aim of eradication the zoonosis.