Avian metapneumovirus (aMPV) and Newcastle disease virus (NDV) are threatening avian pathogens that can cause serious respiratory diseases in poultry worldwide. Vaccination, combined with strict biosecurity practices, has been the recommendation for controlling these diseases in the field. In the present study, we generated NDV LaSota vaccine strain-based recombinant viruses expressing the glyc...

Distributed bisimilarity is one of non-interleaving equivalences studied on concurrent systems; it refines the classical bisimilarity by taking also the spatial distribution of (sub)components into account. In the area of verification of infinite-state systems, one of the simplest (most basic) classes is the class of Basic Parallel Processes (BPP); here distributed bisimilarity is known to coin...

Thermostable Newcastle disease virus (NDV) vaccines have been used widely to protect village chickens against Newcastle disease, due to their decreased dependence on cold chain for transport and storage. However, the genetic basis underlying the NDV thermostability is poorly understood. In this study, we generated chimeric viruses by exchanging viral genes between the thermostable TS09-C strain...

Let T : I ?! I be a Lasota-Yorke map on the interval I, let Y be a non trivial sub-interval of I and g 0 : I ?! R + , be a strictly positive potential which belongs to BV and admits a conformal measure m. We give constructive conditions on Y ensuring the existence of absolutely continuous (w.r.t. m) conditionally invariant probability measures to non absorption in Y. These conditions imply also...

The objective of the study reported here was to evaluate the effects of Levamisole and dexamethasone on antibody titer in chicks against Newcastle vaccine.120 Fertile eggs at 18 days of incubation were divided into four equal group, 30 embryonated egg for each. The first group A inoculated with Levamisole that dose 0.1 mL/egg contain 1.25 mg active ingredient and live attenuated Newcastle vacci...

BACKGROUND Newcastle disease (ND) is a highly contagious viral disease of poultry caused by pathogenic strains of the Newcastle disease virus (NDV). Live NDV vaccines are administered by drinking water, eyedrops or coarse aerosol spray. To further enhance mucosal immune responses, chitosan nanoparticles were developed for the mucosal delivery of a live NDV vaccine. METHODOLOGY/PRINCIPAL FINDI...

The research was aimed to minimize product defects and lyophilization-induced denaturation of lasota vaccine. Sugars alone produced coherent cake but failed to protect virus during lyophilization. Maillard cake browning due to denaturation was evident in N,Z amine products. Polymers, PF-127 and PVP K-90 were able to produce porous cake structure and thus showed efficient water removal. DSC curv...

By means of the Cauchy matrix we give sufficient conditions for the existence and exponential stability of almost periodic solutions for the delay impulsive Lasota–Wazewska model. The impulses are realized at fixed moments of time.

Virulent Newcastle disease virus isolates from the 1971 and 2002 U.S. outbreaks are of the same serotype but a different genotype than current vaccine strains. Prior experiments with inactivated vaccines in chickens show significantly less virus shed in birds vaccinated with a homologous vaccine (same genotype as challenge) compared to chickens vaccinated with genotypically heterologous vaccine...

N Koon, R Schneider-Stock, M Sarlomo-Rikala, J Lasota, M Smolkin, G Petroni, A Zaika, C Boltze, F Meyer, L Andersson, S Knuutila, M Miettinen, W El-Rifai . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....