The teamwork under the supervision of prof. dr hab. Tomasz Stadejek updates the knowledge on the meaning and evolution of porcine circoviruses and parvoviruses. The team has proved that there are three PCV2 genotypes in Poland: PCV2a, PCV2b, and PCV2d; and proposed new diagnostic criteria for the assessment of infections and vaccine effectiveness.
There have been several dramatic outbreaks around the world in recent years, triggered by previously unknown coronaviruses that evolved in non-human species.
The development of diagnostic techniques, including next-generation sequencing, contributed to the discovery of new pathogens of domestic animals origin, including porcine.
The importance of infections for animal and human health is often unknown, therefore it requires some extensive research, including diagnostic and epidemiological studies.
Due to the fact that infections with new and previously known endemic viruses often occur together, and may influence the effectiveness of the economically important diseases control, thus studying these interactions is extremely important from a scientific and practical point of view.
This subject matter is related to the publications of the team consisting of prof. dr hab. Tomasz Stadejek, Dr. Aleksandra Woźniak, Dr. Dagmara Miłek.
The ongoing SARS-Cov2 virus pandemic is extremely painful evidence of the extremely important role of studying the variability and occurrence of circulating viruses, sometimes enzootically, among populations of wild and domestic animals.
Viruses are constantly evolving, and for that reason, they can acquire new pathogenic properties or, by crossing species barriers, adapt to the new host organism.
Although the viruses under study are of known or potential health significance for porcine health, it should be emphasized that, for example, porcine circoviruses have been isolated from species other than swine or wild boar, ruminants, rodents, canines, insects, and crustaceans.
The detection of antigens or DNA of circoviruses in human stool samples or respiratory swabs, or specific antibodies in the serum points out the zoonotic potential of these species.