Featured Research

from universities, journals, and other organizations

Researchers To Probe Whether Lyme Disease Will Follow Spread Of Ticks Across U.S.

Date:
September 17, 2009
Source:
Michigan State University
Summary:
Potentially debilitating Lyme disease doesn't afflict people everywhere that the ticks harboring it are found. At least not yet. A five-university consortium wants to find out why. "These ticks are on the move. As ticks expand into new areas, more people will likely become infected," said Michigan State University fisheries and wildlife assistant professor Jean Tsao.

A penny illustrates the size of the deer tick.
Credit: Photo by Graham Hickling, University of Tennessee

Potentially debilitating Lyme disease doesn’t afflict people everywhere that the ticks harboring it are found. At least not yet. A five-university consortium led by a Michigan State University researcher wants to find out why.

Related Articles


“These ticks are on the move. As ticks expand into new areas, more people will likely become infected,” said MSU fisheries and wildlife assistant professor Jean Tsao, who will lead the four-year, $2.5 million study.

“We have a really intriguing scientific puzzle to solve – many factors change as we move from north to south, and we need to be smart with our study design to unravel these,” she said. “Our study also has practical goals – we aim to provide the health community and the public in the various states with some reassurance, or warning, about what their future will hold for spread of Lyme disease. Understanding the reasons why Lyme disease is such a problem in some areas will help us manage the disease better, and lower the risk to human health.”

In 30 years, the tiny blacklegged tick has cut a huge swath through 10 northern states by carrying a bacterial infection now annually afflicting more than 20,000 North Americans. Curiously, the same parasite commonly known as the deer tick also is found in southern states, where Lyme disease is comparatively rare.

“Researchers do not know how climate, vertebrate biodiversity, tick genetics or other factors affect the maintenance of the pathogen and its relative abundance in an area,” Tsao said. “So as the ticks spread, will tick populations in new areas be infected like northern populations or mainly clean of infection like southern populations?”

The disease has a range of symptoms including rash, fatigue, joint aches and shooting pain, and now is widespread in Minnesota and Wisconsin and along the northeastern seaboard. And although ticks also are found in the forests of the Upper Peninsula and eastern Lake Michigan shoreline, the disease has yet to make serious inroads in Michigan beyond Menominee County in the southwestern U.P.

That might not be the case for long, Tsao said, as infected ticks ride deer, mice, birds and other hosts into new areas. Her colleague Edward Walker’s lab discovered recently established populations of Lyme disease ticks in southwestern Michigan in the early 2000s, she noted, and during the last six years MSU doctoral student Sarah Hamer has tracked the invasion up the shore of Lake Michigan.

Tsao and colleagues are looking into potential new explanations for the uneven incidence of Lyme disease. The researchers plan to study how various ecological factors affect the Lyme disease cycle by simultaneously applying standardized survey methods at 12 sites spanning Massachusetts to Georgia and Minnesota to Mississippi.

Participating with MSU in the National Science Foundation-funded study are researchers from the University of Montreal, the University of Rhode Island, Hofstra University, the University of Tennessee and Georgia Southern University.


Story Source:

The above story is based on materials provided by Michigan State University. Note: Materials may be edited for content and length.


Cite This Page:

Michigan State University. "Researchers To Probe Whether Lyme Disease Will Follow Spread Of Ticks Across U.S.." ScienceDaily. ScienceDaily, 17 September 2009. <www.sciencedaily.com/releases/2009/09/090916173334.htm>.
Michigan State University. (2009, September 17). Researchers To Probe Whether Lyme Disease Will Follow Spread Of Ticks Across U.S.. ScienceDaily. Retrieved March 29, 2015 from www.sciencedaily.com/releases/2009/09/090916173334.htm
Michigan State University. "Researchers To Probe Whether Lyme Disease Will Follow Spread Of Ticks Across U.S.." ScienceDaily. www.sciencedaily.com/releases/2009/09/090916173334.htm (accessed March 29, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, March 29, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

S. Leone in New Anti-Ebola Lockdown

S. Leone in New Anti-Ebola Lockdown

AFP (Mar. 28, 2015) — Sierra Leone imposed a three-day nationwide lockdown Friday for the second time in six months in a bid to prevent a resurgence of the deadly Ebola virus. Duration: 01:17 Video provided by AFP
Powered by NewsLook.com
These Popular Antibiotics Can Cause Permanent Nerve Damage

These Popular Antibiotics Can Cause Permanent Nerve Damage

Newsy (Mar. 27, 2015) — A popular class of antibiotic can leave patients in severe pain and even result in permanent nerve damage. Video provided by Newsy
Powered by NewsLook.com
WH Plan to Fight Antibiotic-Resistant Germs

WH Plan to Fight Antibiotic-Resistant Germs

AP (Mar. 27, 2015) — The White House on Friday announced a five-year plan to fight the threat posed by antibiotic-resistant bacteria amid fears that once-treatable germs could become deadly. (March 27) Video provided by AP
Powered by NewsLook.com
House Ready to Pass Medicare Doc Bill

House Ready to Pass Medicare Doc Bill

AP (Mar. 26, 2015) — In rare bipartisan harmony, congressional leaders pushed a $214 billion bill permanently blocking physician Medicare cuts toward House passage Thursday, moving lawmakers closer to resolving a problem that has plagued them for years. (March 26) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins