The island of Martha's Vineyard, Massachusetts, is the site of a sustained outbreak of tularemia due to Francisella tularensis tularensis. Dog ticks, Dermacentor variabilis, appear to be critical in the perpetuation of the agent there. Tularemia has long been characterized as an agent of natural focality, stably persisting in characteristic sites of transmission, but this suggestion has never b...

Transmission of the bacterium occurs primarily through bites from arthropods, including the dog tick (Dermacentor variabilis), the wood tick (D. andersoni), the lone star tick (Amblyomma americanum), and the deer fl y (Chrysops spp.). In addition, contact with infected animals, most commonly rabbits, wild rodents, and cats, is another common route of transmission to humans (1,6). Tularemia occu...

Francisella tularensis causes the disease tularemia. Human pulmonary exposure to the most virulent form, F. tularensis subsp. tularensis (Ftt), leads to high morbidity and mortality, resulting in this bacterium being classified as a potential biothreat agent. However, a closely-related species, F. novicida, is avirulent in healthy humans. No tularemia vaccine is currently approved for human use...

I read the article entitled “Neck Abscess: An Unusual Clinical Presentation of Immunoglobulin G4-Related Disease” (IgG4-RD) with great interest given our limited knowledge of the entity to date. Review of the article suggests that the patient had necrotizing granulomatous lymphadenitis, for which the most common associated diseases were ruled out. However, one rare cause of such an aggressive a...

Tularemia is caused by a gram-negative, intracellular bacterial pathogen, Francisella tularensis (Ft). The history weaponization of Ft in the past has elevated concerns that it could be used as a bioweapon or an agent of bioterrorism. Since the discovery of Ft, three broad approaches adopted for tularemia vaccine development have included inactivated, live attenuated, or subunit vaccines. Short...

Forty-two subjects with acute tularemia were studied for the occurrence of C-reactive protein (CRP), and 73 subjects with acute tularemia or experience of the disease within the last 11 years were studied for immunoglobulin M (IgM), IgA, and IgG class-specific antibodies, agglutinating antibodies, and complement-fixing antibodies to Francisella tularensis by using an enzyme-linked immunosorbent...

BACKGROUND Pneumonic tularemia is caused by inhalation of the gram negative bacterium, Francisella tularensis. Because of concerns that tularemia could be used as a bioterrorism agent, vaccines and therapeutics are urgently needed. Animal models of pneumonic tularemia with a pathophysiology similar to the human disease are needed to evaluate the efficacy of these potential medical countermeasur...

BACKGROUND/AIM The purpose of this study was to determine the epidemiological and clinical characteristics of patients diagnosed with tularemia and the effectiveness of the administered treatments. MATERIALS AND METHODS Patients treated in our hospital between January 2009 and March 2011 and diagnosed with tularemia were evaluated retrospectively. Patients' epidemiological and clinical charac...

INTRODUCTION Tularemia is a zoonotic disease caused by Francisella tularensis. Here we present an epidemic occurring in Bolu province, located in northwestern Anatolia in Turkey, and some features of the cases. METHODOLOGY The data was provided by the Bolu Provincial Health Directorate. All of the antibody response tests were studied in the National Health Institute (formerly named Refik Sayd...

INTRODUCTION This study aimed to review the possible sources of infection of 16 oropharyngeal tularemia hospital cases, and to document their epidemiological and demographical characteristics, laboratory findings, treatment methods, and treatment results. METHODOLOGY Sixteen cases from a Turkish military hospital between January 2011 and December 2012 were retrospectively evaluated. The age, ...