Andrzej Grzegorz Kruszewicz

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A survey for antibodies to West Nile virus (WNV; genus ,Flavivirus) was carried out by plaque-re-duction neutralization microtesting in 78 horses, 20 domestic chickens, and 97 wild birds belonging to 10 species from different areas in Poland. Specific antibodies were detected in five juvenile (hatching-year) birds collected in 2006: three white storks(More)
In the world-wide literature the role of predators and food shortage are considered as responsible for mortality of eggs and nestlings. In synantropic altricial hole-nestling birds such as sparrowsPasser domesticus (L.) andPasser montanus (L.) the predation plays unimportant role and in spite of this, mortality of eggs and nestlings can exceeded 50%. The(More)
BACKGROUND Salmonella species are widespread in the environment, and occur in cattle, pigs, and birds, including poultry and free-living birds. In this study, we determined the occurrence of Salmonella in different wild bird species in Poland, focusing on five Salmonella serovars monitored in poultry by the European Union: Salmonella serovars Enteritidis,(More)
Differences in the diameter of Isospora lacazei oocysts were found to be dependent on diet and other factors. House sparrows which were given animal products as food (hard boiled eggs) excreted with their faeces coccidia oocysts, which were larger than when they were fed grain. The results indicate a need to verify the divisions of the systematics of(More)
Absence of blood parasites in birds occurring in polar regions is believed to be a common phenomenon but only few surveys have been conducted on truly polar bird species. We examined blood parasites in a seabird with an exclusively high-Arctic breeding distribution, the Little Auk (Alle alle). Polymerase chain reaction was used to detect haemosporidians and(More)
New species, Hepatozoon kabeeni was described in blood of Sedge Warbler Acrocephalus schoenobaenus. The parasite species was detected in two populations of Sedge Warbler in NE and SW parts of Poland. Hepatozoon kabeeni was found respectively in 36.0% (n=25) and 28.6% (n=28) of individuals.
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