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Response of lymphocytes from pigs naturally infected with porcine respiratory disease complex at 3 different stages of development
The objective of this study was to analyze the response of lymphocytes from pigs naturally infected with porcine respiratory disease complex (PRDC) at 3 different stages of development. Porcine respiratory disease complexes were isolated from 2 groups: The infected group, consisting of pigs with PRDC and no vaccination against any virus (n = 24), and the control group, consisting of vaccinated and noninfected piglets (n = 24). Both groups were sampled at 3 stages of development: Weaning (WEA) (n = 8), initiation (INI) (n = 8), and growth (GRO) (n = 8). The PRDC status was confirmed by serological testing against porcine ci...
Source: Canadian Journal of Veterinary Research - April 6, 2023 Category: Veterinary Research Authors: Rosa Elvira Nu ñez-Anita Fernando Calder ón-Rico Francisco P érez-Duran Mar ía Concepción Arenas-Arrocena Alicia Gabriela Zamora-Avil és Luis Enrique Franco-Correa Alejandro Bravo-Pati ño Ilane Hern ández-Morales Source Type: research

Vaccination against swine influenza in pigs causes different drift evolutionary patterns upon swine influenza virus experimental infection and reduces the likelihood of genomic reassortments
Influenza A viruses (IAVs) can infect a wide variety of bird and mammal species. Their genome is characterized by 8 RNA single stranded segments. The low proofreading activity of their polymerases and the genomic reassortment between different IAVs subtypes allow them to continuously evolve, constituting a constant threat to human and animal health. In 2009, a pandemic of an IAV highlighted the importance of the swine host in IAVs adaptation between humans and birds. The swine population and the incidence of swine IAV is constantly growing. In previous studies, despite vaccination, swine IAV growth and evolution were prove...
Source: Frontiers in cellular and infection microbiology - March 13, 2023 Category: Microbiology Source Type: research

Could the lake ecosystems influence the pathogenicity of the SARS-COV-2 in the air?
Acta Biochim Pol. 2023 Mar 3. doi: 10.18388/abp.2020_6514. Online ahead of print.ABSTRACTDuring the first 200 days of the Covid-19 pandemic in Poland, lower morbidity and mortality due to SARS-COV-2 infection were recorded in three regions covered by many small and large lakes (West Pomerania 5.8 deaths/100 000 population, Warmian and Masurian 7.6 deaths/100 000 population, Lubusz 7.3 deaths /100 000 population, compared to Poland average of 16.0 deaths/100 000 population). Moreover, in Mecklenburg (Germany), bordering West Pomerania, only 23 deaths (1.4 deaths/100 000 population) were reported during the same period (Germ...
Source: Acta Biochim Pol - March 3, 2023 Category: Biochemistry Authors: Janusz Boraty ński Source Type: research