Ograniczanie wyników

Czasopisma help
Autorzy help
Lata help
Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 275

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 14 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  badania serologiczne
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 14 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
The purpose of the survey was to assess the prevalence of BHV-1, PI-3, BHV-4, BRSV and BVD in the bovine respiratory tract. Sera were taken from cattle of four districts located in the south-western part of Poland: 349 sera were collected from cows, 183 from heifers and 27 from bulls with no clinical signs of the disease. The findings revealed higher indices of infection caused by the viruses in the group of cows as compared with the one of heifers, and the highest percentage of infections due to PI-3 virus in all groups of the animals. With respect to viruses and districts under study, the following indices of infections were found: BHV-1 from 6.2 to 44.4 per cent, PI-3 from 32.7 do 69 per cent, BHV-4 from 13.9 to 40 per cent, BRSV from 8.5 to 44.4 per cent and BVD from 8.5 to 27.7 per cent. The results indicate significant differences in respect to virus infections caused mainly by the home and international market of cattle. It is worth mentioning that mixed infections were observed more often than monoinfections.
Powszechnie stosowane kryterium rozpoznawania przypadków toksoplazmozy ostrej na podstawie obecności swoistych IgM w surowicy badanej osoby bywa zawodne. Dokładniejszy sposób określania terminu zarażenia toksoplazmą polega na oznaczeniu awidności swoistych przeciwciał klasy IgG. Metoda oznaczania awidności powinna być wykorzystywana podczas badania ciężarnych podejrzanych o inwazję pierwotną, umożliwia bowiem niejednokrotnie wykluczenie ryzyka zarażenia płodu.
It bas been suggested to change the present way of serological diagnosis of echinococcosis in Poland which utilizes immunoelctrophoresis for confirmation of positive results in a screening test. Diagnostic procedure should be indicated with a sensitive test, such as indirect haemagglutination or immunoenzymatic assay, and every positive result should be verifies later using a Western-blot method in order to detect the most specific reaction with 8 kDa fraction of Echinococcus antigen. Further diferentiation of the infecting species may be accomplished with the aid of Em2 plus ELISA test which detect antibodies speeific for E. multilocularis.
The evaluation of the seroprevalence of Aujeszky’s disease (AD) in Poland and the infection rate of the pig population in our country are basic requirements for implementing an AD eradication program. The aim of the presented study was to evaluate the AD seroprevalence in the Polish pig population during the years 2001-2004. In the above-mentioned period a total of 47 445 swine serum samples coming from all 16 voievodships were tested. Among them, 10 559 samples were tested in 2001, 11 974 in 2002, 11 027 samples in 2003 and 13 885 samples in 2004. In 2001 the mean percentage of seropositive pigs was 1.23% and such animals were found in 62.5% of the tested voievodships. In 2002 seropositive animals were found in 50% of the tested voievodships, and the mean percentage of seropositive pigs was 0.95%. In the year 2003 the mean percentage of positive seroreagents was 0’77% and they were found in 37.5% of the tested voievodships. In 2004 the percentage of AD positive voievodships was 50%, and the mean percentage of seropositive pigs was 0.65%. The results presented above demonstrate that the mean percentage of seropositive pigs during the period of 2001-2004 was at the rather low level of 0.88%. However, the percentage of voievodships where seropositive pigs have been found was quite high and amounted to 87.5%. This result indicates the urgent need to undertake an AD eradication program in Poland.
The article presents the results of serological surveys of brucellosis conducted in 1998 on cattle, pigs, sheep, goats, hares, wild boars and dogs. No positive sero-reagents among the pig population were ascertained. The rate of positive results in cattle was established as 0.00098. When B. abortus antigen was used, all serum samples from sheep and goats reacted negatively. When B. ovis antigen was used, 0.91% of sheep sera were positive. The presence of anti-Brucella antibodies was demonstrated in hares, wild boars and dogs.
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 14 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.