Navigation Links
A mathematical perspective of seasonal variations in Lyme disease transmission
Date:12/19/2013

s active in colder temperatures, and rainfall is also critically important for their development, survival, and activities," explains author Xiao-Qiang Zhao. "According to a report from the Public Health Agency of Canada on Lyme disease cases in Ontario between 1999 and 2004, most occurred in late spring and summer, when the young ticks are most active and people are outdoors more often."

A previous model proposed a reaction and diffusion model to study global dynamics of Lyme disease. A reaction-diffusion model takes into account the interaction (reaction) of constituents within the system (in this case pathogens, susceptible hosts and infective hosts) and their change in density over time within their respective populations (diffusion).

The previously-proposed spatial model treats population densities in a continuous two-dimensional space, factoring in birth, death, infection and developmental advancement. However, the model does not account for seasonal patterns.

In this paper, the authors modify this previous model into a reaction and diffusion model in a periodic environment, which models seasonable variables (eg. temperature) as a periodic function. A periodic function is one that repeats its values at regular intervals.

Since seasonal variations are critical for tick development and their activities, which are strongly affected by temperatures, the authors assume that the development rates of ticks as well as their activity rates are time-dependent. The model is governed by a periodic reaction-diffusion system that factors in the densities of susceptible and pathogen-infected mice, densities of susceptible and infectious larvae and nymphs, and densities of uninfected and pathogen-infected adult ticks.

The authors introduce the basic reproduction number R0, which is the number of infectious cases one case of disease can generate on average over the course of the infectious period in a susceptible population. The authors
'/>"/>

Contact: Karthika Muthukumaraswamy
karthika@siam.org
267-350-6383
Society for Industrial and Applied Mathematics
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Springer will publish lecture series with the Mathematical Biosciences Institute
2. Mathematical butterflies provide insight into how insects fly
3. UC Riverside mathematicians recognized by American Mathematical Society
4. Persistence or extinction: Through a mathematical lens
5. Quantitative approaches provide new perspective on development of antibiotic resistance
6. Breastfeeding as a possible deterrent to autism -- a clinical perspective
7. Molecular discovery puts cancer treatment in a new perspective
8. New perspective needed for role of major Alzheimers gene
9. Bridges experimental and bioinformatics perspectives to delineate protein-DNA interactions
10. Individual perspectives improve laparoscopy
11. The future of plant science a technology perspective
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A mathematical perspective of seasonal variations in Lyme disease transmission
(Date:7/30/2014)... July 30, 2014 NexID Biometrics ... liveness detection solutions for the biometric authentication industry, ... consortium revolutionizing online authentication with standards for strong ... , "The decision to join FIDO Alliance stems ... pervasive in use. We believe the FIDO Alliance ...
(Date:7/30/2014)... Scientists are searching through a massive collection of 20-million-year-old ... years ago, and the effort is yielding fresh insights ... , When the collection is fully curated, a task ... largest unbiased Dominican amber collection in the world, the ... thus far is that of a pygmy locust, a ...
(Date:7/30/2014)... in cancer treatment has been shown to relieve ... for neural transmission between the peripheral and central ... Institute of Radiation Medicine, Chinese Academy of Medical ... into rat dorsal root ganglia (DRG) to provide ... radioactivity (0, 14.8, 29.6 MBq) were implanted separately ...
Breaking Biology News(10 mins):NexID Biometrics Joins the FIDO Alliance 2Decades-old amber collection offers new views of a lost world 2
... 21 February 2011 Elsevier, a world-leading publisher ... services, and TAIR - The Arabidopsis Information Resource, ... elements of scientific research. All articles on Elsevier,s ... genes and use AGI codes (e.g. AT4G32520) will ...
... Researchers at Albert Einstein College of Medicine ... to protect against an increasingly common and particularly deadly form ... tested in an animal model, are reported in a paper ... Pneumococcal pneumonia can occur when the lungs are ...
... heart diseases affect approximately one in 100 patients, making ... number-one cause of pediatric deaths. Now a new ... cardiac muscle damage in a mouse model of the congenital ... treatment for this rare condition, but also demonstrates the importance ...
Cached Biology News:Vaccine made with synthetic gene protects against deadly pneumonia 2Vaccine made with synthetic gene protects against deadly pneumonia 3Study shows rapamycin reverses myocardial defects in mouse model of LEOPARD syndrome 2Study shows rapamycin reverses myocardial defects in mouse model of LEOPARD syndrome 3
(Date:7/30/2014)... , July 30, 2014  AtheroNova Inc. (OTCBB: ... and development of compounds to safely regress atherosclerotic ... announces that its partner, CardioNova, has accomplished first ... trial with AtheroNova,s lead compound, AHRO-001.  This Phase ... AHRO-001 Phase 1 safety trial completed in February ...
(Date:7/30/2014)... Diego, CA (PRWEB) July 30, 2014 ... announced their weighing boat special – Buy ... 1 free. This promotion will benefit lab technicians looking ... work. Weighing boats are ideal for multiple applications including ... offers a variety of choices including diamond-shaped, hexagonal, square, ...
(Date:7/29/2014)... significant technological challenges in their quest to improve ... the James Webb Space Telescope. , The team, ... at NASA,s Goddard Space Flight Center in Greenbelt, ... that is, those activated by applying an ... current technology,s magnetically activated arrays. This advance makes ...
(Date:7/29/2014)... HOUSTON (July 29, 2014) Tough, ultralight foam ... and shape through a chemical process invented at Rice ... "GO-0.5BN" looks like a nanoscale building, with floors and ... a pair of two-dimensional materials: floors and walls of ... boron nitride platelets. , The researchers say the ...
Breaking Biology Technology:AtheroNova Announces Milestone with Initiation of Phase 1b Clinical Trial of AHRO-001 2AtheroNova Announces Milestone with Initiation of Phase 1b Clinical Trial of AHRO-001 3AtheroNova Announces Milestone with Initiation of Phase 1b Clinical Trial of AHRO-001 4Weighing Boat Promotion Now Available at Pipette.com, Major Pipette Distributor 2Revolutionary microshutter technology hurdles significant challenges 2Revolutionary microshutter technology hurdles significant challenges 3Revolutionary microshutter technology hurdles significant challenges 4Tough foam from tiny sheets 2
... FRANCISCO, Calif., Jan. 4 Cerimon,Pharmaceuticals, Inc. announced ... Counsel, a newly established position, and Vice President ... global life sciences,executive and corporate attorney with broad ... in the US and,Europe. In the business development ...
... efficacy in treatment of multi-drug ... resistant infections -, ... "Company"), a biopharmaceutical company focused on the,development of novel antibiotics for ... patients in two,separate Phase 2 clinical trials. The studies will evaluate ...
... and biotechnology ... expertise, BOSTON, Jan. 3 Observant LLC has ... for research excellence,and a commitment to client service. John ... firm as Vice President. Dr. Hartman,s,research has focused on ...
Cached Biology Technology:Cerimon Pharmaceuticals Names Matthew J. Meyer its General Counsel and Vice President of Business Development and Licensing 2Rib-X Pharmaceuticals Initiates Two Phase 2 Studies for Novel Antibiotic Compound RX-1741 2Rib-X Pharmaceuticals Initiates Two Phase 2 Studies for Novel Antibiotic Compound RX-1741 3Observant LLC Expands Senior Management Team 2
...
Experion spin filters are used to filter the gel matrix and gel stain solution prior to use with the Experion automated electrophoresis system. Supplied as 10 spin filters....
...
... to PRKAR2 cAMP is a signaling ... functions. cAMP exerts its effects by activating ... the signal through phosphorylation of different target ... a tetramer composed of two regulatory and ...
Biology Products: