The ability of Francisella tularensis to replicate in macrophages has led many investigators to assume that it resides primarily intracellularly in the blood of mammalian hosts. We have found this supposition to be untrue. In almost all cases, the majority of F. tularensis recovered from the blood of infected mice was in plasma rather than leukocytes. This distribution was observed irrespective of size of inoculum, route of inoculation, time after inoculation, or virulence of the infecting strain. Our findings yield new insight into the pathogenesis of tularemia and may have important ramifications in the search for anti-Francisella therapies.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1086/518611 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Fatal and sp. co-infestation in wolves () at the Białowieża National Park, Poland - is it a consequence of climate change?
J Vet Res
December 2024
Department of Virology, National Veterinary Research Institute, 24-100 Puławy, Poland.
Introduction: In winter 2021/2022, a wolf population in the primeval Białowieża Forest in Poland was struck by an outbreak of severe mange caused by mixed infestations of and mites. We present an epidemiological analysis of this mange which caused significant morbidity and mortality.
Material And Methods: Ten sites known for wolf activity were monitored by camera trapping.
Breaking the cellular defense: the role of autophagy evasion in virulence.
Front Cell Infect Microbiol
January 2025
Department of Molecular Pathology and Biology, Military Faculty of Medicine, University of Defence, Hradec Kralove, Czechia.
Many pathogens have evolved sophisticated strategies to evade autophagy, a crucial cellular defense mechanism that typically targets and degrades invading microorganisms. By subverting or inhibiting autophagy, these pathogens can create a more favorable environment for their replication and survival within the host. For instance, some bacteria secrete factors that block autophagosome formation, while others might escape from autophagosomes before degradation.
View Article and Find Full Text PDFDevelopment of Effective Medical Countermeasures Against the Main Biowarfare Agents: The Importance of Antibodies.
Microorganisms
December 2024
Targeted Therapy Team, Institute for Cancer Research, 237 Fulham Road, London SW3 6JB, UK.
The COVID-19 and mpox crisis has reminded the world of the potentially catastrophic consequences of biological agents. Aside from the natural risk, biological agents can also be weaponized or used for bioterrorism. Dissemination in a population or among livestock could be used to destabilize a nation by creating a climate of terror, by negatively impacting the economy and undermining institutions.
View Article and Find Full Text PDFEffects of Body Condition and Ectoparasitism on Host-Pathogen Interactions of Heteromyid Rodents.
Pathogens
December 2024
Departamento de Ciencias Veterinarias, Universidad Autónoma de Ciudad Juárez, Anillo Envolvente y Estocolmo s/n Colonia Progresista AP 1729-D Cd. Juárez, Chihuahua CP 32310, Mexico.
Rodents play a significant role in the transmission of zoonotic diseases; anthropization has increased human contact with these animals, vectors of infectious agents. However, the processes driving parasitism of hosts remains poorly understood. , spp.
View Article and Find Full Text PDFTularemia is a rare nationally notifiable zoonosis, caused by the tier-1 select agent Francisella tularensis, that has been reported from all U.S. states except Hawaii.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!