Borrelia burgdorferi- The Cause of Lyme Disease: Difference between revisions

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==Introduction==
==Introduction==


Borrelia burgdorferi is an ancient spirochete-shaped bacteria that is responsible for Lyme disease [https://www.sciencedirect.com/science/article/abs/pii/S0891552007001316?via%3Dihub]. These bacteria symbiotically live within the bodies of ticks, benefitting from this relationship, whereas the ticks do not. Borrelia burgdorferi is a part of the Spircochete phylum, which is distinctive for bacteria that have a spirally shaped body and flagella that are found in the periplasmic space between the inner and outer membranes [1]. Borrelia burgdorferi are excellent swimmers, and are able to navigate their way from ticks to new, vertebrate hosts such as small mammals, birds, and lizards [1]. Oftentimes, ticks in their larval feeding phase pick up Borrelia burgdorferi from rodents infected with the bacteria [1]. As the ticks grow into their adult phase, they eventually target only large mammals, infecting them with Borrelia burgdorferi as they feed. Interestingly, Borrelia burgdorferi are almost never transferred transovarially [1]. Humans typically obtain Borrelia burgdorferi and Lyme disease as a result from nymphal ticks, because they are smaller and more difficult to spot than adult ticks, allowing the nymphs to feed for longer periods of time [1]. Lyme disease can cause an array of symptoms in patients, the most infamous being the distinctive bullseye pattern rash that appears on the skin, called erythra migrans [1]. Because Borrelia burgdorferi is transmitted via ticks, Lyme disease is most prevalent in rural areas, where ticks can be more commonly found [1]. In the United States, Lyme disease can most commonly be found in New England, mid-Atlantic states, upper north-central states, and in some areas of California in the northwest [2]. Furthermore, this infection is seasonal, when ticks are the most active and most likely to come into contact with humans. Research on Lyme disease has been heavily prioritized, with more than $3.5 million per year granted by the CDC to fund new research [2]. In order to better understand Lyme disease and its impacts, it is important to recognize the unique characteristics of Borrelia burgdorferi through its genome, metabolism, morphology, motility, and chemotaxis.  
Borrelia burgdorferi is an ancient spirochete-shaped bacteria that is responsible for Lyme disease [https://www.sciencedirect.com/science/article/abs/pii/S0891552007001316?via%3Dihub [1]]. These bacteria symbiotically live within the bodies of ticks, benefitting from this relationship, whereas the ticks do not. Borrelia burgdorferi is a part of the Spircochete phylum, which is distinctive for bacteria that have a spirally shaped body and flagella that are found in the periplasmic space between the inner and outer membranes [https://www.sciencedirect.com/science/article/abs/pii/S0891552007001316?via%3Dihub [1]]. Borrelia burgdorferi are excellent swimmers, and are able to navigate their way from ticks to new, vertebrate hosts such as small mammals, birds, and lizards [https://www.sciencedirect.com/science/article/abs/pii/S0891552007001316?via%3Dihub [1]]. Oftentimes, ticks in their larval feeding phase pick up Borrelia burgdorferi from rodents infected with the bacteria [1]. As the ticks grow into their adult phase, they eventually target only large mammals, infecting them with Borrelia burgdorferi as they feed. Interestingly, Borrelia burgdorferi are almost never transferred transovarially [https://www.sciencedirect.com/science/article/abs/pii/S0891552007001316?via%3Dihub [1]]. Humans typically obtain Borrelia burgdorferi and Lyme disease as a result from nymphal ticks, because they are smaller and more difficult to spot than adult ticks, allowing the nymphs to feed for longer periods of time [https://www.sciencedirect.com/science/article/abs/pii/S0891552007001316?via%3Dihub [1]]. Lyme disease can cause an array of symptoms in patients, the most infamous being the distinctive bullseye pattern rash that appears on the skin, called erythra migrans [https://www.sciencedirect.com/science/article/abs/pii/S0891552007001316?via%3Dihub [1]]. Because Borrelia burgdorferi is transmitted via ticks, Lyme disease is most prevalent in rural areas, where ticks can be more commonly found [https://www.sciencedirect.com/science/article/abs/pii/S0891552007001316?via%3Dihub [1]]. In the United States, Lyme disease can most commonly be found in New England, mid-Atlantic states, upper north-central states, and in some areas of California in the northwest [https://www.sciencedirect.com/science/article/pii/S0025619611607313?via%3Dihub [2]]. Furthermore, this infection is seasonal, when ticks are the most active and most likely to come into contact with humans. Research on Lyme disease has been heavily prioritized, with more than $3.5 million per year granted by the CDC to fund new research [https://www.sciencedirect.com/science/article/pii/S0025619611607313?via%3Dihub [2]]. In order to better understand Lyme disease and its impacts, it is important to recognize the unique characteristics of Borrelia burgdorferi through its genome, metabolism, morphology, motility, and chemotaxis.  


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Introduction

Borrelia burgdorferi is an ancient spirochete-shaped bacteria that is responsible for Lyme disease [1]. These bacteria symbiotically live within the bodies of ticks, benefitting from this relationship, whereas the ticks do not. Borrelia burgdorferi is a part of the Spircochete phylum, which is distinctive for bacteria that have a spirally shaped body and flagella that are found in the periplasmic space between the inner and outer membranes [1]. Borrelia burgdorferi are excellent swimmers, and are able to navigate their way from ticks to new, vertebrate hosts such as small mammals, birds, and lizards [1]. Oftentimes, ticks in their larval feeding phase pick up Borrelia burgdorferi from rodents infected with the bacteria [1]. As the ticks grow into their adult phase, they eventually target only large mammals, infecting them with Borrelia burgdorferi as they feed. Interestingly, Borrelia burgdorferi are almost never transferred transovarially [1]. Humans typically obtain Borrelia burgdorferi and Lyme disease as a result from nymphal ticks, because they are smaller and more difficult to spot than adult ticks, allowing the nymphs to feed for longer periods of time [1]. Lyme disease can cause an array of symptoms in patients, the most infamous being the distinctive bullseye pattern rash that appears on the skin, called erythra migrans [1]. Because Borrelia burgdorferi is transmitted via ticks, Lyme disease is most prevalent in rural areas, where ticks can be more commonly found [1]. In the United States, Lyme disease can most commonly be found in New England, mid-Atlantic states, upper north-central states, and in some areas of California in the northwest [2]. Furthermore, this infection is seasonal, when ticks are the most active and most likely to come into contact with humans. Research on Lyme disease has been heavily prioritized, with more than $3.5 million per year granted by the CDC to fund new research [2]. In order to better understand Lyme disease and its impacts, it is important to recognize the unique characteristics of Borrelia burgdorferi through its genome, metabolism, morphology, motility, and chemotaxis.

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Authored for BIOL 238 Microbiology, taught by Joan Slonczewski, 2022, Kenyon College