- Bacillus and Francisella bacterial research
- Bacteriophages and microbial interactions
- Yersinia bacterium, plague, ectoparasites research
- Burkholderia infections and melioidosis
- Zoonotic diseases and public health
- Microbial Inactivation Methods
- Chemical Looping and Thermochemical Processes
- Microbial infections and disease research
- Poxvirus research and outbreaks
- Rabies epidemiology and control
- Bacterial Genetics and Biotechnology
- Data-Driven Disease Surveillance
CDC Foundation
2025
Centers for Disease Control and Prevention
2008-2024
National Center for Emerging and Zoonotic Infectious Diseases
2008-2024
Arizona Department of Health Services
2023
UC San Diego Health System
2016
Naval Medical Center San Diego
2016
San Francisco VA Medical Center
2016
Summary 1. Anthrax is endemic throughout Africa, causing considerable livestock and wildlife losses severe, sometimes fatal, infection in humans. Predicting the risk of therefore important for public health, conservation economies. However, because intermittent variable nature anthrax outbreaks, associated environmental climatic conditions, diversity species affected, ecology this multihost pathogen poorly understood. 2. We explored records from Serengeti ecosystem north‐west Tanzania where...
Abstract Bacillus anthracis, the bacterium that causes anthrax, is responsible for varying death rates among animal species. Difficulties in case detection, hazardous or inaccessible carcasses, and misdiagnosis hinder surveillance. Using reports a new serologic assay enables multispecies comparisons, we examined exposure to illness caused by B. anthracis different species Serengeti ecosystem Tanzania during 1996–2009 utility of serosurveillance. High seroprevalence carnivores suggested...
Melioidosis, caused by
Investigation of melioidosis cases in eastern Puerto Rico revealed high rates Burkholderia pseudomallei seropositivity, and the bacterium was isolated from soil, suggesting regional endemicity. Increased awareness is needed to enable early case identification antimicrobial therapy.
Burkholderia pseudomallei, the causative agent of melioidosis, was isolated from abscesses 2 pet green iguanas in California, USA. The international trade may contribute to importation this pathogen into countries where it is not endemic and put persons exposed these animals at risk for infection.
Cutaneous anthrax outbreaks occurred in Bangladesh from August to October 2009. As part of the epidemiological response and confirm diagnoses, serum samples were collected suspected case patients with observed cutaneous lesions. Anthrax lethal factor (LF), anti-protective antigen (anti-PA) immunoglobulin G (IgG), toxin neutralization activity (TNA) levels determined acute convalescent 26 first largest these outbreaks. LF (0.005–1.264 ng/mL) was detected 18 individuals. Anti-PA IgG TNA sera...
Bacillus cereus is typically considered a blood culture contaminant; however, its presence in cultures can indicate true bacteremia. We report 4 episodes of B. bacteremia 3 persons who inject drugs. Multilocus sequence typing showed that the temporally associated infections were caused by unrelated clones.
Currently there are no commercially available selective media indicated for the isolation of Burkholderia mallei and pseudomallei. Ashdown's agar, a custom medium B. pseudomallei, is well described in literature but unavailable commercially. Three media, cepacia agar (BCSA), oxidative-fermentative-polymyxin B-bacitracin-lactose (OFPBL) Pseudomonas (PC) recommended from respiratory secretions cystic fibrosis patients. We evaluated sensitivity selectivity these four using 20 mallei, spp., 15...
Bacillus anthracis, the etiological agent of anthrax, is a gram-positive, spore-forming rod, with colonies exhibiting unique ground-glass appearance, and lacking hemolysis motility. In addition to these phenotypes, several others traits are characteristic B. anthracis such as susceptibility gamma phage, presence two virulence plasmids (pX01 pX02), specific cell wall capsular antigens that commonly detected by direct fluorescent-antibody assays. We report on identification characterization 14...
To evaluate two selective media, polymyxin, lysozyme, ethylenediaminetetraacetic acid, thallium acetate (PLET) agar and R&F Anthracis chromogenic (ChrA), for the isolation selection of Bacillus anthracis.Sixteen genotypically diverse B. anthracis strains were sub-cultured onto PLET ChrA to test sensitivity (ability grow produce expected colony morphology) both media. Fourteen 16 produced morphology on (88% sensitive) while 13/16 medium (81% sensitive). Seventeen other 18 nonBacillus spp....
<i>African Journal of Wildlife Research</i> is a multidisciplinary journal that has been published since 1971 and covers the scientific, applied, managerial, methodological, sociological issues related to wildlife research.
Anthrax is a rare but serious infectious zoonotic disease caused by the spore-forming bacterium Bacillus anthracis.In North America, animal outbreaks typically occur during summer in hot, dry weather (1).Rare cases among humans usually follow direct contact with or processing of anthrax-infected animals contanimated products such as hides, hair, wool (1,2).In early 2024, an unusual case confirmed cutaneous anthrax* acquired winter geographic region enzootic anthrax occurred, and...
causes anthrax through virulence factors encoded on two plasmids. However, non-