Results 81 to 90 of about 44,650 (212)
ABSTRACT Bacteria of the order Rickettsiales comprise a diverse group of obligate intracellular microorganisms that are globally distributed and highly prevalent in tropical and subtropical regions. In South America, these bacteria have been associated with arthropod vectors, such as ticks, fleas, mites, lice, and certain dipterans, as well as with a ...
Cristian J. Zamorano‐Gómez +3 more
wiley +1 more source
R-Factor in Salmonella enterica serovar typhi: transfer to and acquisition from Escherichia coli.
Blood culture isolates of Salmonella enterica serovar Typhi showing high degrees of resistance to ampicillin, chloramphenicol, cotrimoxazole and tetracycline (ACCoT-resistance) transferred their full resistance phenotype to antibiotic-sensitive S. enterica serovar Typhi strains through the primary recipient Escherichia coli C600.
Mandal, Shyamapada +2 more
openaire +2 more sources
R. typhi-infected CB17 SCID mice develop severe liver necrosis.
CB17 SCID mice were infected s.c. with 2×106 sfu into the tail base while control mice received PBS. The photograph shows a representative liver of a R. typhi-infected CB17 SCID mouse at the time of death (left).
Jessica Rauch (3070527) +8 more
core +1 more source
Rickettsia felis Infection, Tunisia
We report, for the first time, serologic evidence of Rickettsia felis and R. aeschlimannii infections acquired in Tunisia from 1998 to 2003. We found that most patients with antibodies against both R. conorii and R.
Abir Znazen +5 more
doaj +1 more source
This study demonstrates that mild salinity stress (1%–2% NaCl) significantly enhances biofilm formation in Enterobacter cloacae. Using a standardised 96‐well microtiter plate assay, we optimised in vitro biofilm quantification and classification, providing a reproducible framework for studying environmental and clinical biofilm development mechanisms ...
Srishti Singh +6 more
wiley +1 more source
CB17 SCID mice succumb to R. typhi infection and develop systemic infection.
CB17 SCID mice were infected s.c. with 2×106, 2×104 or 2×102 sfu R. typhi into the base of the tail (n = 10 for each group). BALB/c mice received 2×106 sfu R. typhi via the same route (n = 11). Control CB17 SCID mice received PBS (n = 10). Survival rates
Jessica Rauch (3070527) +8 more
core +1 more source
Toxigenic Salmonella enterica exocytose the typhoid toxin during infection causing host cell DNA damage, which activates a Type‐1 Interferon‐like response characterised by interferon‐stimulated gene 15 (ISG15) expression. ISG15 was required for host cell survival during Interferon responses and suppressed intracellular growth of Salmonella. Thus, ISG15
Daniel S. Stark +11 more
wiley +1 more source
Schematic illustration of “The effects of Mentha piperita essential oil and its nanoemulsion on microbial inhibition and quality preservation of mango yogurt during refrigerated storage”. ABSTRACT Fruit yogurts are more susceptible to microbial contamination than plain yogurts due to the incorporation of fruit ingredients, increasing the need for ...
Fatemeh Chehri +2 more
wiley +1 more source
PNA decreases rOmpB protein production and in vitro infection by TG R. typhi.
A) Western blot of Opti-prep purified, serially diluted rOmpB PNA-treated R. typhi and quantitative densitometry of the rOmpB expression as a percent of undiluted rOmpB.
Khandra T. Sears (143998) +5 more
core +1 more source
Optimization of heat inactivation protocols for Orientia and Rickettsia species
Heat treatment, or thermal disinfection, is one of the simplest and most widely used methods for microbial inactivation. Proper heat inactivation protocols are essential to ensure the safe transportation and handling of infectious materials, particularly
Artharee Rungrojn +4 more
doaj +1 more source

