Meet the Microbiologist

Ashley Hagen, M.S.
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Meet the Microbiologist

Who is microbiology? Meet the Microbiologist (MTM) introduces you to the people who discover, innovate and advance the field of microbiology. Go behind-the-scenes of the microbial sciences with experts in virology, bacteriology, mycology, parasitology and more! Share in their passion for microbes and hear about research successes and even a few setbacks in their field. MTM covers everything from genomics, antibiotic resistance, synthetic biology, emerging infectious diseases, microbial ecology, public health, social equity, host-microbe biology, drug discovery, artificial intelligence, the microbiome and more! From graduate students to working clinicians and emeritus professors, host, Ashley Hagen, Scientific and Digital Editor at the American Society for Microbiology, highlights professionals in all stages of their careers, gleaning wisdom, career advice and even a bit of mentorship along the way.

  1. 11 NOV.

    Biorisk Assessment and Management With Saeed Khan

    Saeed Khan, Ph.D., Head of the Department of Molecular Pathology at Dow diagnostic research and reference laboratory and President of the Pakistan Biological Safety Association discusses the importance and challenges of biosafety/biosecurity practices on both a local and global scale. He highlights key steps for biorisk assessment and management and stresses the importance of training, timing and technology. Ashley's Biggest Takeaways Adequate biosafety and biosecurity protocols depend on a thorough understanding of modern challenges, and scientists must be willing and able to respond to new technological threats appropriately. In the microbiology lab, the threat goes beyond the physical pathogen. Implications of genomics and cyber security must be built into biorisk management techniques, including data storage and waste management practices. Risk assessments involve evaluation of both inherent and residual risk. Inherent risk is linked to the pathogen. Residual risk varies according to the lab, equipment, employee, environment, etc. As a result, biosafety and biosecurity risks are constantly changing, and assessments must be repeated strategically and often. Khan recommended repeating a risk assessment whenever a key variable in the equation changes, i.e., new equipment, new employee, new pathogen. He also recommended (at minimum) conducting routine risk assessments every 6 months, or twice a year. Featured Quotes:  “We need to have basic biosafety and biosecurity to stay away from these bugs and the modern challenges, like cyber biosecurity and genomics. These are the new areas, which are potential threats for the future, and where we need to train our researchers and students.” “Starting from simple hand washing or hand hygiene, the basic things we use are gloves, goggles and PPE to protect the workers, the staff and the patient from getting infected from the environment, laboratory or hospitals. These are the basic things, and it's very crucial, because if one is not using gloves in the lab or not wearing the lab coat, he or she may get infected from the sample, and the patient can get infected from the physician and doctors or nurse if they are not following the basic biosafety rules. These [things] are routinely important. Every day we should practice this.” “But there are [also] new challenges. Particularly in the microbiology lab, we [used to] think that once we killed the bacteria, then it's fine. But nowadays, it's not the way we should think about it. Though you kill the bacteria practically, it still has a sequence, [which] we call the genome, and if you have that information with you, you theoretically have the potential to recreate that pathogen… that can be used or maybe misused as well.” “[Working with] scripts of pathogens, like smallpox or the polioviruses, we call this synthetic biology. Different scientists are doing it for the right purposes, like for production of vaccines, to find new therapeutics, to understand the pathology of the diseases. But on [the other hand]—we call it dual use research of concern (DURC)—the same can be misused as well. That's why it's very important to be aware of the bugs that we are working with, and the potential of that pathogen or microbe, to the extent that can be useful or otherwise.” “So, we should be aware of the new concern of the technology, synthetic biology and DURC. These are new concepts—cyber, biosecurity and information security [are all] very much important these days. You cannot be relaxed being in the microbiology lab. Once we have identified a pathogen, declared a result to the patient and the physician, and it's been treated, we [still] need to be worried about waste management—that we discard that waste properly and we have proper inventory control of our culture. It should be safe in the locker or on in the freezers and properly locked, so we should not be losing any single tube of the culture, otherwise it

    50 min

  2. 27 SEPT.

    From Hydrothermal Vents to Cold Seeps: How Bacteria Sustain Ocean Life With Nicole Dubilier

    Nicole Dubilier, Ph.D., Director and head of the Symbiosis Department at the Max Planck Institute for Marine Microbiology, has led numerous reserach cruises and expeditions around the world studying the symbiotic relationships of bacteria and marine invertebrates. She discusses how the use of various methods, including deep-sea in situ tools, molecular, 'omic' and imaging analyses, have illuminated remarkable geographic, species and habitat diversity amongst symbionts and emphasizes the importance of discovery-driven research over hypothesis-driven methods. Watch this episode: https://www.youtube.com/watch?v=OC9vqE1visc Ashley's Biggest Takeaways: In 1878, German surgeon, botanist and microbiologist, Heinrich Anton de Bary, first described symbiosis as the living together of two or more different organisms in close physical intimacy for a longer period of time.  These relationships can be beneficial, detrimental or commensal, depending on the organisms involved.  Microbial symbiosis research holds great potential to contribute to sustainable energy production and environmental health. Links for This Episode: Learn more about one of Dubilier's research vessels and see videos from the expidition. Functional diversity enables multiple symbiont strains to coexist in deep-sea mussels. Chemosynthetic symbioses: Primer. Take the MTM listener survey!

    31 min

  3. 23 AOÛT

    When Proteins Become Infectious: Understanding Prion Disease With Neil Mabbott

    From Bovine Spongiform Encephalopathy (BSE) to Creutzfeldt-Jakob disease (CJD), Neil Mabbott, Ph.D., has worked for nearly 2 decades on understanding the mechanisms by which prion proteins become infectious and cause neurological disease in humans and animals. He discusses the remarkable properties of prions and addresses complexities surrounding symptoms, transmission and diagnosis of prion disease.

    56 min

  4. 28 MAI

    Trillion Dollar Microbes Make the Bioeconomy Go Round With Tim Donohue

    Episode Summary Timothy Donohue, Ph.D.—ASM Past President, University of Wisconsin Foundation Fetzer Professor of Bacteriologyand Director of the Great Lakes Bioenergy Research Center (GLBRC) calls genomics a game-changer when it comes the potential of microbes to create renewable resources and products that can sustain the environment, economy and supply chain around the world. He also shares some exciting new advances in the field and discusses ways his research team is using microorganisms as nanofactories to degrade lignocellulose and make a smorgasbord of products with high economic value. Take the MTM listener survey! Ashley's Biggest Takeaways: The bioeconomy can be broadly defined as the use of renewable resources, including microorganisms, to produce valuable goods, products and services. Microbes have the potential to create products that cannot be made by existing synthetic chemistry routes. Using raw, renewable resources to create a circular bioeconomy is beneficial to the environmental footprint, economic footprint and supply chain security around the globe. Links for This Episode: The theme of our Spring 2024 Issue of Microcosm, our flagship member magazine is Microbes and the Bioeconomy: Greasing the Gears of Sustainability, launches this week and features an article based on this MTM conversation. If you are an ASM Member, check back on Wed., June 30 for the newly published content! Not a member? Consider renewing or signing up today, and begin exploring endless potential to boulster your career and network with professionals, like Donohue, in your field.  Get Bioeconomy Policy Updates. Heading to ASM Microbe 2024? Check out this curated itinerary of sessions on the bioeconomy, including those discussing the use of algae for bioproduction and synthetic biology for natural product discovery. Learn more about the Great Lakes Bioenergy Research Center. MTM listener survey!

    49 min

  5. 7 MAI

    Rabies: The Diabolical Virus With Many Symptoms and Hosts With Rodney Rohde

    Rodney Rohde, Ph.D., Regents’ Professor and Chair of the Medical Laboratory Science Program at Texas State University discusses the many variants, mammalian hosts and diverse neurological symptoms of rabies virus. Take the MTM listener survey! Ashley’s Biggest Takeaways: Prior to his academic career, Rohde spent a decade as a public health microbiologist and molecular epidemiologist with the Texas Department of State Health Services Bureau of Laboratories and Zoonosis Control Division, and over 30 years researching rabies virus. While at the Department of Health Lab, Rohde worked on virus isolation using what he described as “old school” cell culture techniques, including immunoassays and hemagglutinin inhibition assays. He also identified different variants of rabies virus, using molecular biology techniques. Rohde spent time in the field shepherding oral vaccination programs that, according to passive surveillance methods have completely eliminated canine rabies in Texas. In the last 30-40 years, most rabies deaths in the U.S. have been caused by bats. Approximately 98% of the time rabies is transmitted through the saliva via a bite from a rabid animal. Post-exposure vaccination must take place before symptoms develop in order to be protective. Links for This Episode: Molecular epidemiology of rabies epizootics in Texas. Bat Rabies, Texas, 1996–2000. The Conversation: Rabies is an ancient, unpredictable and potentially fatal disease. Rohde and Charles Rupprecht, 2 rabies researchers, explain how to protect yourself. The One Health of Rabies: It’s Not Just for Animals. MTM listener survey!

    55 min

  6. 9 MARS

    Increasing Laboratory Capacity for TB Diagnosis With Aureliana Chambal

    ASM's Young Ambassador, Aureliana Chambal, discusses the high incidence of tuberculosis in Mozambique and how improved surveillance can help block disease transmission in low resource settings.  Ashley's Biggest Takeaways: Mozambique is severely impacted by the TB epidemic, with one of the highest incidences in Africa (368 cases/ 100,000 people in the population). Human-adapted members of the Mycobacterium tuberculosis complex (MTBC) belong to 7 different phylogenetic lineages. These 7 lineages may vary in geographic distribution, and have varying impacts on infection and disease outcome. For decades, 2 reference strains have been used for TB lab research, H37Rv, which Chambal mentions, and Erdman. Both of these belong to TB Lineage 4. According to Chambal, the reference strains that we use for whole genome sequencing (worldwide) may be missing genes that are related the virulence (and/or resistance) of strains that are circulating in a given population and detected in clinical settings. Chambal is endeavoring to employ a new strain to control these analyses and better understand transmission dynamics in the community setting. Featured Quotes:  The Schlumberger Foundation Faculty for the Future Fellowship is one of my proudest accomplishments for the 2023. I applied for this fellowship last year to pursue my Ph.D. It is a program that supports women coming from emerging and developing economies to pursue advanced research qualifications in science, technology, engineering and mathematics. I applied because I was looking to get more skills in microbiology, specifically tuberculosis, to pursue my Ph.D. at Nottingham Trent University. Pathway to Microbiology Research My trajectory is different because I have a bachelor’s in veterinary medicine. And during my undergrad, I always had more interest in the lab practice modules or disciplines. For the end of the [bachelor’s] project, I was looking to understand the anthelmintic effectiveness against the gastrointestinal parasites in goats. After I finished this project, I was looking to continue a related project, but unfortunately, I couldn't get work related to that.. In 2016, I applied for the National Institutes of Health of Mozambique, which is one of the biggest research institutions in my home country. That's when I was selected to work at the north region of Mozambique, specifically at the Nampula Tuberculosis Reference Laboratory. And then I moved to the public health laboratory as well, where I had the opportunity to work in the microbiology section. So, to be honest, my passion for microbiology started when I had the first contact with the TB lab, and then I couldn't separate myself from this area, tuberculosis. In 2016, I had the opportunity to receive a mentorship. Our lab, the TB lab of Nampula, received mentorship from the American Society for Microbiology. And we worked with Dr. Shirematee Baboolal; she was the mentor of our lab. The main idea of the program was to get the lab accredited and to build technical capacity in the lab. And to be honest, at the time, I didn't have much experience in lab techniques to detect or diagnosis tuberculosis. And I said to Dr. Shirematee, “I don't have much experience in this area, so, I don't know if I will be able to help you to accomplish these goals.” And she said, “If you want to learn, I can teach you, and you can be one of the best in this area.” And then we started training with her. It was very interesting. The passion she passed to us about microbiology—and tuberculosis, in particular—was one of the triggers for my passion in this area. So, to be honest, Dr. Shirematee Baboolal was one of the persons that triggered my interest from tuberculosis. So, I have to say thank you to her! Tuberculosis Genomic Diversity and Transmission Dynamics Mozambique is one of the higher burden countries of tuberculosis. So, our population is about 33 million people. And the case rate is high, it is approx

    35 min

  7. 26 JANV.

    Good Science, Bad Science and How to Make it Better with Ferric Fang and Arturo Casadevall

    The scientific process has the power to deliver a better world and may be the most monumental human achievement. But when it is unethically performed or miscommunicated, it can cause confusion and division. Drs. Fang and Casadevall discuss what is good science, what is bad science and how to make it better. Get the book! Thinking about Science: Good Science, Bad Science, and How to Make It Better

    59 min

  8. 11/12/2023

    Using AI to Understand How the Gut-Brain Axis Points to Autism With James Morton

    Dr. James Morton discusses how the gut microbiome modulates brain development and function with specific emphasis on how the gut-brain axis points to functional architecture of autism. Watch James' talk from ASM Microbe 2023: Using AI to Glean Insights From Microbiome Data https://youtu.be/hUQls359Spo

    44 min
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Who is microbiology? Meet the Microbiologist (MTM) introduces you to the people who discover, innovate and advance the field of microbiology. Go behind-the-scenes of the microbial sciences with experts in virology, bacteriology, mycology, parasitology and more! Share in their passion for microbes and hear about research successes and even a few setbacks in their field. MTM covers everything from genomics, antibiotic resistance, synthetic biology, emerging infectious diseases, microbial ecology, public health, social equity, host-microbe biology, drug discovery, artificial intelligence, the microbiome and more! From graduate students to working clinicians and emeritus professors, host, Ashley Hagen, Scientific and Digital Editor at the American Society for Microbiology, highlights professionals in all stages of their careers, gleaning wisdom, career advice and even a bit of mentorship along the way.

Informations

  • Création
    Ashley Hagen, M.S.
  • Années d’activité
    2008 - 2024
  • Épisodes
    164
  • Classification
    Tous publics
  • Copyright
    © American Society for Microbiology - Creative Commons Attribution-Noncommercial
  • Site web de l’émission
    Meet the Microbiologist

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