Download Lyme Disease

Lyme Disease
By: Robbie Jackson
History
• “I’ve got
more
nervous ticks
than a Lyme
disease
research
facility”
-Sheldon Cooper from
The Big Bang Theory
• In the early 1970’s a mysterious group of
rheumatoid arthritis cases occurred among
children of Lyme, Connecticut and two
neighboring towns
• Most cases occurred near wooded areas so they
focused their attention on dear ticks
• They concluded that these ticks were the cause
of Lyme disease however did not exactly know
what caused it
• In 1981 the NAID researchers found a spirochete,
later named Borellia Bugdorferin, was causing
Lyme disease
What is Borellia Bugdorferin
•
•
•
•
•
B. Bugdorferin is a bacteria
This bacteria is 20-30 um in length and 0.2-0.5 um in width
It is a spiral shaped-gram-negative bacteria
Its motile success is due to its extraordinary flagella
Because it has linear chromosomes, rather than circular, it can survive in a
variety of environments
• The optimal temperature for growth of the bacteria is 32 degrees celcius
(body temp)
Transmission
• B. burgdorferin stays in the mid-gut of the tick vector,
habitating the microvilli and epithelium of the gut
• After the tick latches on to a host, bacteria can invade the gut
epithelium and make its way into the salivary glands allowing
it to infect.
Symptoms
• Typically the first symptom of Lyme disease is a rash around the site of the
tick bite
• Rash is accompanied by other symptoms such as fever, headache, stiff
neck, body aches and fatigue.
• Some patients may develop arthritis, nervous system problems, or heart
problems.
The Case of Chronic Lyme Disease
•
MB is a 49 year old female diagnosed with Lyme
•
Her symptoms rapidly progress from fatigue to multiple sclerosis (MS) like symptoms such as numbness
and tingling in the extremities. In January 1992 she received intravenous (IV) Rocephin for 3 months after
which time she was hospitalized for three and one half weeks for a severely low white blood cell,
neutrophil and platelet count. This was a side effect due to the drug treatment. She was given a challenge
test to see if there was another antibiotic regimen she could tolerate. She was then given Primaxin via IV
administration for approximately five and one half months. She developed antibiotic resistant bacteria (C.
difficile) and was given Questran as treatment.
•
She also developed dumping syndrome from the Primaxin. She developed nausea which was managed
with Compasine administered both IV and as a suppository for one week. She was also given Minocin,
Biaxin and Amoxycillin on and off until approximately June 1994. She often had to stop treatment due to
the side effect of a very low white blood count. Despite the massive antibiotic treatment her symptoms
did not improve. She would get a little better for a short time and then her symptoms would return. She
also developed more symptoms during the years of antibiotic treatment including knee pain in both
knees, left hip pain and debilitating neuropathy. Her doctor told her there was nothing else he could do for
her. (Case Study conducted by Dr. Shari Lieberman)
The Spread
• There were 22,572 confirmed cases and 7,597 probable cases
of Lyme disease were reported to the centers of Disease
Control & Prevention in 2010
• There are 20,000+ cases each year
• During 2008–2009, 31 confirmed cases and 52 presumptive
cases were reported in Oregon. The median age was 42 years.
Fifity one (60%) cases were female. Of the cases, 25% were
reported in Deschutes, Jackson and Josephine counties.
Prevention & Treatment
Prevention
•
Know where to expect ticks
•
Use repellent with DEET (N,Ndiethyl-m-toluamide)
•
•
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Perform daily tick checks
Remove ticks quickly
Prevent ticks on animals
Treatment
• Antibiotics such as
doxycycline or Amoxicillin
taken orally for 2-3 weeks
• Serious cases may require IV
intake of antibiotics
Why Lyme Disease
• Lyme Disease is an important disease to study
because it is so hard to diagnose
• Symptoms are that of the common flu that can be
obtianed by all individuals or arthritis which is
common in the elderly.
• Because of this it is very important that we study
it so we can differentiate between Lyme Disease
and many other diseases or infections.
References
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“Lyme Disease.” www.CDC.gov. Centers for Disease Control and Prevention. 14 June, 2013.Web. 8 July, 2013.
•
Zeelman, David. “Arthritis and Lyme Disease.” www.WebMD.com. 1 Oct. 2012.Web. 9 July, 2013.
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“Summer Safety Tips.” www.co.marion.or.us. Marion County Oregon. 3 June, 2013.Web. 11 July, 2013.
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“Lyme Disease Transmission Research.” www.Niaid.gov. National Institute of Allergy and Infectious Diseases. 5 Dec. 2007.Web. 6 July, 2013
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Joyce, Kaitlyn. “Borellia burgdorferi, the cause of Lyme Disease.” http://bioweb.uwlax.edu/bio203/s2007/joyce_kait/. 2007. Web. 12 July 2013