Bronchiseptica Pneumonia Research Articles

A CASE OF BORDETELLA BRONCHISEPTICA AND PNEUMOCYSTIS JIROVECI PNEUMONIA IN A YOUNG PATIENT

A CASE OF BORDETELLA BRONCHISEPTICA AND PNEUMOCYSTIS JIROVECI PNEUMONIA IN A YOUNG PATIENT

Bordetella bronchiseptica pneumonia in a patient with lung cancer; a case report of a rare infection

BackgroundBordetella bronchiseptica (B.bronchiseptica) is a frequent cause of respiratory infections in animals but rarely causes serious infection in humans. We present a rare case of B. bronchiseptica pneumonia in a patient with lung cancer.Case presentationA 52-year-old white male with non small cell lung cancer developed fever during treatment with nivolumab. A persistent productive cough and a deterioration in his clinical condition led to his hospitalization for evaluation. Bronchoscopy was performed and a diagnosis of B. bronchiseptica pneumonia was made. The infection was successfully managed by antiobiotic therapy.ConclusionsB. bronchiseptica is a pathogen that can cause serious infection in humans, especially in immunocompromised or immunoincompetent individuals. In our patient it showed unusual resistance to cephalosporins and poor sensitivity to amikacin. To our knowledge this is the first case of such an infection in a lung cancer patient undergoing treatment with nivolumab. When B. bronchiseptica is identified, the possibility of a nosocomial transmission must be considered.

Imaging Findings in Human Bordetella bronchiseptica Pneumonia

Bordetella bronchiseptica is a gram-negative coccobacillus, which causes respiratory infection in dogs, rabbits, and pigs, and is rarely a human pulmonary pathogen. We present 2 immunocompromised patients diagnosed with B. bronchiseptica pneumonia. To our knowledge, these are the first reports of this disease in patients with B-cell lymphoma and an orthotopic cardiac transplant. In this report, we briefly discuss the epidemiology, microbiology, and challenges in the laboratory identification of B. bronchiseptica and describe the protean imaging manifestations of this rare pulmonary infection. We also address issues related to treatment and prognosis.

Bordetella bronchisepticaPneumonia in an Extremely-Low-Birth-Weight Neonate

Bordetella bronchiseptica, a gram-negative coccobacillus, is a common veterinary pathogen. In both domestic and wild animals, this bacterium causes respiratory infections including infectious tracheobronchitis in dogs and atrophic rhinitis in swine. Human infections are rare and have been documented in immunocompromised hosts. Here, we describe an extremely-low-birth-weight infant with B. bronchiseptica pneumonia. This is the first report that describes the microorganism's responsibility in causing nosocomial infection in a preterm neonate. He recovered uneventfully after a course of meropenem. It is possible that the bacteria colonize the respiratory tracts of our health care workers or parents who may have had contact with pets and then transmitted the bacterium to our patient. Follow-up until 21 months of age showed normal growth and development. He did not suffer from any significant residual respiratory disease.

Syndrome thoracique aigu associé à une infection àBordetella bronchiseptica chez un enfant drépanocytaire

We describe a case of acute chest syndrome associated with Bordetella bronchiseptica pneumonia in a child with sickle cell disease. B. bronchiseptica is recognized as an important pathogen of the respiratory tract for a large variety of animal species. This zoonotic agent has been frequently associated with chronic and recurrent infections. In humans, the bacterium acts as an opportunistic pathogen affecting mostly immunocompromised patients or those with preexisting respiratory diseases. This case and literature review provides an opportunity to discuss the risk factors, treatment, follow-up, and prevention of such zoonotic infections in the context of a lack of cross-protection of new pertussis vaccines.

Bordetella bronchisepticapneumonia in a kidney-pancreas transplant patient after exposure to recently vaccinated dogs

Bordetella bronchiseptica is an uncommon cause of respiratory infection in humans generally occurring in immunocompromised individuals exposed to infected animals. A 61-year-old female underwent a kidney-pancreas transplant 7 years before presentation. Postoperative immunosuppression was achieved with sirolimus and mycophenolate mofetil. The patient was doing well until she developed a small bowel obstruction secondary to adhesions. She underwent surgical adhesiolysis without complications. Two weeks postoperatively the patient developed pneumonia. She failed to respond to repeated courses of antibiotics, and thus, diagnostic bronchoscopy with bronchoalveolar lavage (BAL) was performed. BAL cultures grew B. bronchiseptica. Further investigation revealed that the patient's dogs had recently received a live-attenuated B. bronchiseptica intranasal vaccination. The patient recovered after 21 days of therapy with doxycycline based upon in vitro susceptibility testing. B. bronchiseptica is an uncommon but recognized human pathogen. It most commonly affects immunocompromised individuals. Here, we report a culture-proven case of B. bronchiseptica pneumonia in an immunocompromised host residing in a household with her dogs who had recently received live-attenuated, intranasal B. bronchiseptica vaccinations. As polymerase chain reaction testing was not performed comparing the isolated strain to the vaccination strain, the association is presumptive. This report expands the spectrum of immunocompromised hosts to include renal-pancreas transplant patients who have developed infection from B. bronchiseptica, while illustrating the risks associated with animal contacts and attenuated vaccines in the immunosuppressed population.

Bordetella bronchiseptica pneumonia in a man with acquired immunodeficiency syndrome: a case report

IntroductionBordetella bronchiseptica can be a cause of virulent pneumonia in humans with impaired immune systems. Few cases have been reported in the medical literature where Bordetella bronchiseptica has been the only pathogen isolated during a course of interstitial pneumonia.Case presentationA 42-year-old African-American man with human immunodeficiency virus presented with pulmonary symptoms that mimicked Pneumocystis jiroveci pneumonia. A sputum culture grew Bordetella brochiseptica, a common respiratory commensal of wild and domestic animals, rarely implicated in human infections.ConclusionBordetella bronchiseptica should be added to the differential list of pathogens which can affect people with human immunodeficiency virus and pulmonary symptoms. Sputum culture, as well as history of animal exposure, in these patients is advised.

Persistent Bordetella bronchiseptica Pneumonia in an Immunocompetent Infant and Genetic Comparison of Clinical Isolates with Kennel Cough Vaccine Strains

An infant who experienced recurrent episodes of respiratory failure received a diagnosis of pertussis on the basis of immunofluorescence testing, but culture revealed macrolide-resistant Bordetella bronchiseptica. Genetic analysis demonstrated that the child was not infected with a kennel cough vaccine strain, although the family's dog had recently been vaccinated. The infection cleared with imipenem therapy.

Canine distemper virus infection with secondary Bordetella bronchiseptica pneumonia in dogs

Canine distemper virus infection and secondary Bordetella bronchiseptica pneumonia are described in mongrel dogs. Canine distemper was characterised by nonsuppurative demyelinating encephalitis with typical inclusion bodies in astrocytes. B. bronchiseptica was isolated from areas of purulent bronchopneumonia.

Bordetella bronchiseptica pneumonia in a patient with AIDS.

Bordetella bronchiseptica is recognised as a respiratory tract pathogen in many mammalian species, but has rarely been implicated in human infection. A case is reported of pneumonia caused by B bronchiseptica in a patient suffering from acquired immunodeficiency syndrome (AIDS).

Bordetella bronchiseptica Pneumonia in a Patient with Down Syndrome: A Case Report and Review

Bordetella bronchiseptica is primarily an animal pathogen, responsible for canine tracheobronchitis (kennel cough) and bronchopneumonia, as well as porcine atrophic rhinitis and otitis media. It readily colonizes the upper respiratory tract and oropharynx of these species.1 This organism rarely has been recognized as a human pathogen, causing mild upper respiratory tract infections in animal caretakers,1 subacute bacterial endocarditis,2 and a pertussis-like illness in children.3 Although asymptomatic nosocomial colonization of humans occurs,4 it also has been reported in immunocompromised Patients as a cause of sepsis,5 peritonitis,6 bronchitis,4,7 and pneumonia.4,8-13 To date, seven cases of human B bronchiseptica pneumonia have been reported in the literature with five of these occurring in immunocompromised patients.

Airborne-induced experimental Bordetella bronchiseptica pneumonia in strain 13 guineapigs.

To evaluate the efficacy of a commercial bacterial vaccine in protecting Strain 13 guineapigs against fatal Bordetella bronchiseptica pneumonia, it was necessary to establish the infectivity and disease pathogenesis induced by virulent organisms. When guineapigs were exposed to small-particle aerosols of varying concentrations of virulent B. bronchiseptica, a spectrum of disease was produced that ranged from inapparent illness to fulminant bronchopneumonia. Clinical signs began by day 4 after exposure, and were evidenced by anorexia, weight loss, respiratory distress and serous to purulent nasal discharge. Pathological alterations were limited to the respiratory system. Moribund animals exhibited a suppurative necrotizing bronchopneumonia and necrotizing tracheitis. In animals that survived the challenge, the bacteria were eliminated from the lungs by day 28 but continued to persist in the laryngeal area and the trachea. The median infectious dose and the median lethal dose were estimated to be 4 colony-forming units (CFU) and 1314 CFU respectively. These data suggest that the guineapig will be a valuable model system in which to study interactions between Bordetella species and host cells as well as to evaluate potential B. bronchiseptica immunogens.

Control of Acute Bordetella Bronchiseptica Pneumonia in A Guinea-Pig Colony

Summary An outbreak of pneumonia associated with Bordetella bronchiseptica in a breeding colony of guinea-pigs was studied. Infected animals were identified by the use of nasal swabbing and necropsy examination, and measures were taken to control the disease and establish a colony free of this pathogen.