Streptococcus suis is an important zoonotic pathogen. However, identification of virulent S. suis strains is complicated because of the high diversity of the species. Here we evaluated the genetic difference among S. suis strains using comparative genomic hybridization (CGH) and virulence variation in vivo and in vitro. We showed that different clades differed in their ability to activate TLR2/...

M92 is a methicillin-resistant Staphylococcus aureus (MRSA) colonizing strain belonging to ST239-MRSA-III. It frequently shows local nasal colonization in our hospital staff, but has never been associated with infection. We sequenced the complete genome of M92, in order to compare it to highly virulent MRSA strains to gain insight into MRSA virulence factors.

Burkholderia thailandensis infection in humans is uncommon. We describe a case of B. thailandensis infection in a person in China, a location heretofore unknown for B. thailandensis. We identified the specific virulence factors of B. thailandensis, which may indicate a transition to a new virulent form.

Green gram (Vignaradiata L.) is one of Indias most essential and widely cultivated pulse crops. Several biotic abiotic factors cause the yield loss in green gram. Among factors, root rot devasting which can maximum under severe conditions. Ten pathogenic isolates Macrophominaphaseolinacausing Greengramwere collected from different locations Perambalur District Tamil Nadu. The produced symptoms ...

The Bacillus anthracis Carbosap genome, which includes the pXO1 and pXO2 plasmids, has been shown to encode the major B. anthracis virulence factors, yet this strain's attenuation has not yet been explained. Here we report the draft genome sequence of this strain, and a comparison to fully virulent B. anthracis.

To respond to emerging and re-emerging infections, it is necessary to understand the interactions between microbial pathogens and their hosts and the impact of environmental and social factors on these interactions. The importance of understanding host-pathogen interactions is underscored by the emergence of virulent H5N1 avian influenza viruses and their transmission to humans, and the potenti...

16 isolates of fusarium culmorum obtained from washington, north dakota and minnesota were tested for pathogenicity on five cultivars and lines: chevron, ci 9549, excel, karl, larker, morex, robust, m48, m66 and m69 were evaluated for reaction to the mixture of all isolates of the pathogen under field condition. the results of glasshouse test indicated that the isolates 10, 25 and 27 were the m...

BACKGROUND Over the past two decades, enterococci have emerged as an important agent responsible for hospital acquired infection. Several virulence factors contribute to the adherence, colonization, evasion of the host immune response, and pathogenicity and severity of the infection. Enterococcus faecalis is the most common and virulent species causing infections in hospitalized patients. The a...

in this study, twenty-five strains of mycobacterium tuberculosis resistant to isoniazid (inh) were isolated from patients with tuberculosis (tb). nine strains (36%) were found to be virulent in guinea-pigs [root index virulence (riv» 1 ]. the remaining sixteen strains (64%) were non-virulent (riv <1). of the nine strains resistant to inh as well as virulent to guinea-pigs, eight of them were fo...

Surgalla, M. J. (Fort Detrick, Frederick, Md.), A. W. Andrews, and C. L. Baugh. Effects of bicarbonate on growth of Pasteurella pestis. I. Differential response of virulent and avirulent cells. J. Bacteriol. 88:269-272. 1964.-Virulent Pasteurella pestis and the avirulent mutants always present in a virulent inoculum have been demonstrated to give growth responses in opposite directions upon add...