ProHealth fibromyalgia Vitamin and Natural Supplement Store and Health
Home  |  Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help
Facebook Google Plus
Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Lyme Disease  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

The best sleeping positions for pain

VIDEO: Anxiety: 11 Things We Want You to Understand

Chronic Pain, Loneliness, Depression and Suicide

Is There a GERD—Fibro Connection?

Beyond pain in fibromyalgia: insights into the symptom of fatigue.

Things to Do When You're Mostly Housebound

Is a Good Night's Sleep at the Top of Your Wishlist?

Stair negotiation in women with fibromyalgia: A descriptive correlational study.

Could a Diet Reduce the Pain in Fibromyalgia? A FODMAPS Study Suggests Yes

Tying the Brain and Body Together in Fibromyalgia?

 
Print Page
Email Article

In a warmer world, ticks that spread disease are arriving earlier, expanding their ranges

  [ 3 votes ]   [ Discuss This Article ]
www.ProHealth.com • April 8, 2015


In a warmer world, ticks that spread disease are arriving earlier, expanding their ranges
Press Release: Cary Institute, Feb 18, 2015.  In the northeastern United States, warmer spring temperatures are leading to shifts in the emergence of the blacklegged ticks that carry Lyme disease and other tick-borne pathogens. At the same time, milder weather is allowing ticks to spread into new geographic regions. Findings were published this week in a special issue of the Philosophical Transactions of the Royal Society B dedicated to climate change and vector-borne diseases.

Conclusions on blacklegged tick emergence were based on nineteen years of data collected at the Cary Institute of Ecosystem Studies in Millbrook, NY. Located in Dutchess County, the 2,000-acre research campus sits at an epicenter for tick-borne disease. Cary Institute ecologist Dr. Richard S. Ostfeld and his team have amassed one of the most comprehensive field studies on how environmental conditions influence vector-borne disease risk.

Ostfeld, a co-author on the paper, comments, "Nearly two decades of data revealed climate warming trends correlated with earlier spring feeding by nymphal ticks, sometimes by as much as three weeks. If this persists, we will need to move Lyme Disease Awareness Month from May to April."

Risk of tick-borne illness is shaped by complex interactions among pathogens, ticks, and host animals. Take the case of Lyme disease: blacklegged ticks acquire the bacterium that causes Lyme when they feed on small mammals that harbor Borrelia burgdorferi. Ticks seek a single blood meal at each life stage: larva, nymph, and adult. Larval ticks are born free of the Borrelia bacterium. Tiny infected nymphs pose the greatest threat to people.

Dr. Taal Levi of Oregon State University led the emergence analysis; he performed the work while a Postdoctoral Associate at the Cary Institute. Levi explains, "Understanding when ticks are active, and at what life stage, is essential to predicting tick-borne disease spread. Pathogens that cause a lasting host infection, such as the Lyme disease bacterium, benefit from a lag between nymphal and larval feeing. The same might not be true of other pathogens, like Powassan virus, that are transmitted when larvae and nymphs feed simultaneously."

Using observations on more than 53,000 mice, 12,000 chipmunks, 403,000 larval ticks and 44,000 nymphal ticks collected in the Cary Institute's forests, Levi, Ostfeld, Dr. Felicia Keesing of Bard College, and Cary Institute Senior Research Specialist Kelly Oggenfuss unraveled how climate shaped the timing of tick lifecycle events. Nymphs peaked in the spring and larvae in the summer. Both larval and nymphal ticks were found to emerge nearly three weeks earlier in warmer years, but there was little evidence of larval and nymphal peaks either converging or diverging.

When fall temperatures were mild, a smaller percentage of larval ticks entered dormancy and waited until spring to feed. If these trends continue as the climate warms, asynchronous patterns of larval and nymphal tick emergence in northeastern North America are likely to persist.

Levi notes, "Results suggest that significant climate warming may reduce risk of anaplasmosis and the Powassan virus, but increase Lyme disease risk, particularly in the Upper Midwest where tick feeding patterns are likely to become more asynchronous." With Ostfeld emphasizing, "Here in the Northeast, warming is already having an effect, and people need to be tick-vigilant before May, as potentially infected nymphal ticks are searching for their blood meals earlier and earlier."

The second study, co-authored by Ostfeld and Dr. Jesse L. Brunner of Washington State University, reviewed scientific studies of how climate warming influenced the distribution of ticks. Efforts focused on Ixodes ticks, which are vectors of many human pathogens in addition to Lyme disease bacteria. These ticks spend much of their lives on or near the ground and appear limited by cold winter temperatures.

Clear evidence was found that warming is expanding Ixodes populations to higher latitudes and altitudes, but more work is needed to understand why ticks in different regions appear to be constrained by different environmental influences.

Ostfeld concludes: "Forecasting how climate change shapes tick-borne disease risk requires taking a suite of factors into consideration, among them habitat loss, urbanization, and movement of people and animals. We are making inroads, but protecting public health will require investment in multidisciplinary, collaborative work that takes advantage of new technology and modeling approaches."

Journal Reference: T. Levi, F. Keesing, K. Oggenfuss, R. S. Ostfeld. Accelerated phenology of blacklegged ticks under climate warming. Philosophical Transactions of the Royal Society B: Biological Sciences, 2015; 370 (1665): 20130556 DOI: 10.1098/rstb.2013.0556



Post a Comment

Featured Products From the ProHealth Store
Fibro Freedom™ FibroSleep™ B-12 Extreme™


Article Comments



Be the first to comment on this article!

Post a Comment


 
Optimized Curcumin Longvida with Omega-3

Featured Products

Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
B-12 Extreme™ B-12 Extreme™
The Most Potent Vitamin B-12 on Earth
Guaifenesin FA™ Guaifenesin FA™
Helps the Body Eliminate Excess Calcium and Phosphates
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid

Natural Remedies

Astaxanthin - A Little-Known but Power-Packed Nutrient Astaxanthin - A Little-Known but Power-Packed Nutrient
Help for Soreness and Swelling: What Do Silkworms Have to Do With It? Help for Soreness and Swelling: What Do Silkworms Have to Do With It?
Complete and Natural Menopause Relief Complete and Natural Menopause Relief
Coping When Colds or Flu Catch Up with You Coping When Colds or Flu Catch Up with You
Priming Your Immune System for Cold & Flu Season Priming Your Immune System for Cold & Flu Season

CONTACT US
ProHealth, Inc.
555 Maple Ave
Carpinteria, CA 93013
(800) 366-6056  |  Email

· Become a Wholesaler
· Vendor Inquiries
· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE TO OUR NEWSLETTERS
Get the latest news about Fibromyalgia, M.E/Chronic Fatigue Syndrome, Lyme Disease and Natural Wellness

CONNECT WITH US ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus

© 2017 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map