Changes in virulence

In this paper, we present the results of sequencing, analysis and comparison of changes in the genome betweenthe attenuated virus strain Hanvet1.vn and the original pathogenic strain 02HY in order to evaluate the genetic changes related to the virulence and immunogenicity of the vaccine.

8p vimulcahy 18-09-2023 4 3   Download

Nowadays, as the global population grows, the demand for food is also becoming higher each day. Together with the rise in food demand, Muscovy duck has been gradually bred industrially as a poultry food supply along with the chicken. The change from traditional to industrial breeding poses a potential risk of pathogenic bacteria infection and antimicrobial resistance bacteria.

17p vicaptainmarvel 21-04-2023 4 2   Download

The growth of V. parahaemolyticus was varied among different salinity and shaking conditions. It showed the best growth at 2.0% NaCl and 240 rpm. No change in the enzymatic activity (EA) of the tested extracellular enzymes was observed while changing salinity except the significant decline of gelatinase from 3.49±0.19 to 2.77±0.17 mm following salinity increase (p < 0.05).

14p spiritedaway36 25-11-2021 12 0   Download

Erwinia amylovora is generally considered to be a homogeneous species in terms of phenotypic and genetic features. However, strains show variation in their virulence, particularly on hosts with different susceptibility to fire blight. We applied the RNA-seq technique to elucidate transcriptome-level changes of the lowly virulent E. amylovora 650 strain during infection of shoots of susceptible (Idared) and resistant (Free Redstar) apple cultivars.

15p vilarryellison 29-10-2021 7 0   Download

Plant pathogens cause substantial crop losses in agriculture production and threaten food security. Plants evolved the ability to recognize virulence factors and pathogens have repeatedly escaped recognition due rapid evolutionary change at pathogen virulence loci (i.e. effector genes).

16p vilichoo2711 23-06-2021 8 1   Download

The existence of latent low-virulence anaerobic bacteria in degenerated intervertebral discs (IVDs) remains controversial. In this study, the prevalence of low-virulence anaerobic bacteria in degenerated IVDs was examined, and the correlation between bacterial infection and clinical symptoms was analysed.

5p vivermont2711 28-01-2021 8 2   Download

Escherichia coli are recognized indicators of faecal contamination. However, this perspective has changed with the ability of some strains of E. coli to cause human illness. The pathogenic E. coli strains can cause a variety of diseases, including diarrhoea, dysentery, and haemolytic uremic syndrome, bladder and kidney infections. Different strains are usually associated with different diseases; this versatility of E. coli strains is due to the different strains possessing unique virulence genes.

10p caygaocaolon8 07-11-2020 15 1   Download

Bacterial gene loss and acquisition is a well-known phenomenon which contributes to bacterial adaptation through changes in important phenotypes such as virulence, antibiotic resistance and metabolic capability.

8p vicolorado2711 22-10-2020 8 0   Download

Newcastle disease (ND) is a highly contagious viral disease affecting most of the avian species. The mortality of birds varies with the virulence and pathogenicity of virus that infects the birds and also with susceptibility of birds. Though ducks are resistant to ND, there are some studies reported that the susceptibility of some breeds of ducks to NDV.

7p nguaconbaynhay5 11-05-2020 8 0   Download

The earlier released hybrid GHB 558 and latest released hybrid GHB 732 become susceptible to downy mildew disease. Though recently released hybrid GHB 732 is popular but it is susceptible to lodging because of its thin stem. However, in view of versatility of downy mildew fungi for its changes in virulence, farmer based choice differences in different pearl millet growing area of the state and to diversify the genetic base of cultivated public bred pearl millet hybrids. There is an urgent need and demand for a medium duration kharif hybrid with downy mildew and lodging resistance.

7p trinhthamhodang3 17-02-2020 18 0   Download

Rice Blast caused by the fungal pathogen Magnaporthe oryzae is one of the most devastating diseases worldwide. Host plant resistance is the effective and economical way to manage this disease. Host plant resistance has been exploited as source for developing resistant variety since past. Challenge (host resistance) induced shifts in pathogen variabilities necessitates continuous development of need based resistant varieties.

10p quenchua2 15-12-2019 11 0   Download

Antibiotic resistance and the particular emergence of multi - resistant bacterial strains are clinically relevant issue involving serious threats to public health worldwide. DNA methylation, which changes the affinity and interaction of regulatory proteins with DNA, is an epigenetic mechanism that regulates numerous bacterial physiological processes, including chromosome replication, DNA segregation, mismatch repair, transposition and transcription.

11p quenchua2 15-12-2019 6 0   Download

The author concludes by making a number of recommendations to those seeking to implement VLEs in other schools: including the need to choose a VLE suited to the school’s vision and context, consideration of total cost of ownership, developing a collaborative culture within and beyond the school, integration with other information systems, and embedding the system within the school’s culture.

136p thieubaotrang 16-04-2013 102 7   Download

TheCPBgenes of the protozoan parasiteLeishmania mex-icana encode stage-regulated cathepsin L-like cysteine pro-teases that are important virulence factors and are in a tandem array of 19 genes. In this study, we have compared the substrate preferences of two CPB isoforms, CPB2.8 and CPB3, and a H84Y mutant of the latter enzyme, to analyse the roles played by the few amino acid differences between the isoenzymes in determining substrate specificity. CPB3 differs fromCPB2.8 at just three residues (N60D,D61Nand D64S) in the mature domain. ...

0p awards 05-04-2013 35 1   Download

VISUAL BASIC is a VISUAL and events driven Programming Language. These are the main divergences from th1e old BASIC. In BASIC, programming is done in a text-based environment and the program is executed sequentially. In VISUAL BASIC, programming is done in a graphical environment. In old BASIC, you have to write a text-based procedure to design the interface, but Visual Basic enables you to design the interface by dragging and resizing the objects as well as changing their colors, just like any windows-based programs. ...

6p nhacchovina 25-02-2013 43 3   Download

We do not yet know what causes most cases of endometrial cancer. But we do know that certain risk factors are linked to this disease. A risk factor is anything that changes a person's chance of getting a disease such as cancer. Different cancers have different risk factors. For example, being in strong sunlight without protection is a risk factor for skin cancer. Smoking is a risk factor for many cancers. Some risk factors, like your age or race, can't be changed. Others, like smoking and diet are under your control. But risk factors don't tell us everything. Someone...

4p taisaokhongthedung 09-01-2013 36 1   Download

Mutant analysis by polymerase chain reaction and restriction enzyme cleavage (MAPREC) has been developed by Chumakov et al. for poliovirus to determine quantitatively the presence of genomic changes in particular nucleotide sequences that lead to virulence phenotypes of oral poliomyelitis vaccine (OPV or live attenuated vaccine) [1]. Afterwards, this RI (radioisotope) MAPREC was developed to non RI – MAPREC by Japan Poliomyelitis Research Institute in 1998 to compensate for some disadvantages of RI-MAPREC [2].

7p tuanloc_muido 11-12-2012 34 1   Download

The Coordinated Street Furniture Program intends to change how our city streets look, function and meet the needs of residents and visitors. The goal of the program is to harmonize the design, form, scale, materials and placement of street furniture, so that it contributes to the accessibility, safety and beauty of our public spaces. The program will be implemented through a Request For Proposal (RFP) process that will seek proposals from the private sector to provide coordinated street furniture elements under a financial arrangement that creates long-term value to the City.

62p can_thai 10-12-2012 45 4   Download

Over the next decade, the two laws also will provide for about $900 billion in new subsidies, including a substantial expansion of Medicaid and new tax credits to offset the cost of health insurance premiums for low- and middle-income families and small businesses. In each state, exchanges will be established to facilitate the purchase of coverage and the delivery of the subsidies. Some companies whose workers receive subsidies for health insurance through the exchanges could be required to pay penalties.

44p quaivatxanh 01-12-2012 162 11   Download