Online Textbook Bacteriology is continuously updated and includes information on Staphylococcus, MRSA, Streptococcus, E. coli, anthrax, cholera, tuberculosis, Lyme disease and other bacterial diseases of humans.
Kenneth Todar is the author of the Online Textbook of Bacteriology and an emeritus lecturer at the University of encourages people to wear a FDA approved face mask during the Covid-19 pandemic.
The Online Textbook of Bacteriology is a general and medical microbiology text and includes discussion of staph, MRSA, strep, Anthrax, E. coli, cholera, tuberculosis, Lyme Disease and other bacterial pathogens.
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Web Review of Todar's Online Textbook of Bacteriology. "The Good, the Bad, and the Deadly".

Tag words: Lyme disease, Borrelia burgdorferi, Bb, spirochete, Ixodes tick, deer tick, bull's eye rash

Borrelia burgdorferi

Kingdom: Bacteria
Phylum: Spirochaetes
Class: Spirochaetes
Order: Spirochaetales
Family: Spirochaetacae
Genus: Borrelia
Species: B. burgdorferi

Common References: Lyme disease, Borrelia burgdorferi, Bb, spirochete, Ixodes tick, deer tick, bull's eye rash

Kenneth Todar currently teaches Microbiology 100 at the University of Wisconsin-Madison.  His main teaching interest include general microbiology, bacterial diversity, microbial ecology and pathogenic bacteriology.

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Borrelia burgdorferi and Lyme Disease (page 2)

(This chapter has 6 pages)

© Kenneth Todar, PhD

Incidence and Distribution of Lyme Disease in the United States

Lyme disease has a wide distribution in northern temperate regions of the world. In the United States, the highest incidence occurs in the Northeast, from Massachusetts to Maryland and the North-central states, especially Wisconsin and Minnesota.

In 2009, nearly 30,000 cases of Lyme disease were reported in the U.S., the highest number ever reported. This increase could be caused by an increase in human contact with infected ticks and enhanced reporting of cases.

Thirteen states have consistently reported an incidence of Lyme disease higher than the national average: Connecticut, Delaware, Maryland, Maine, Massachusetts, Minnesota, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, and Wisconsin. During 2014, 25,359 Lyme disease cases were reported to CDC, of which 23,900 cases (94.2%) were reported from these 13 states. This data is representative of all years and is reflected in the CDC 2014 incidence map below. The highest incidence of Lyme Disease In the U.S. occurs in the Upper Midwest and in Pennsylvania northwards throughout the North East.

Lyme disease cases by state, 2014. CDC.

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Kenneth Todar has taught microbiology to undergraduate students at The University of Texas, University of Alaska and University of Wisconsin since 1969.

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