Navigation Links
Princeton study: Nighttime images help track disease from the sky
Date:12/8/2011

s such as epidemics, Bharti said.

"Nighttime imagery is used as a tool to look at stable populations, which is the opposite of what we used it for," Bharti said. "Setting up this latest project was very labor-intensive. The idea of applying nighttime-lights data in this way is somewhat unconventional, so there was no previous research for us to work from."

Follow the lights, follow the crowd

The work stems from a longtime effort in Grenfell's lab to understand seasonal measles epidemics in Niger. In 2010, Bharti published a paper with Djibo, Grenfell, Grais and lead author Ferrari, as well as Penn State entomology professor Ottar Bjornstad, reporting that measles epidemics in Niger only occur during the dry season and that an outbreak's severity is related to an area's population.

Thus, the researchers concluded, these events are likely the result of population shifts, rather than environmental factors such as rainfall. But without an accurate method for measuring population movement and changes in density, they could not test their hypothesis, Bharti said.

The project reported in Science is intended to provide such a method. The researchers selected nighttime images clear of excess light pollution and obscuring weather from several hundred photos captured between 2000 and 2004 by the Defense Meteorological Satellite Program's Operational Linescan System, operated by the U.S. Department of Defense. Those images were compared to records from Niger's Ministry of Health of weekly measles outbreaks during the same years in the country's three largest cities: Maradi, Zinder and the capital, Niamey.

Seasonal brightness for all three cities changed similarly, the researchers report. Brightness was below average for each city during the agriculturally busy rainy season, then rose to above average as people packed urban areas during the dry season. Measles transmission rates followed the same pattern low in the r
'/>"/>

Contact: Morgan Kelly
mgnkelly@princeton.edu
609-258-5729
Princeton University
Source:Eurekalert  

Page: 1 2 3 4 5 6

Related medicine news :

1. Princeton scientists discover mechanism involved in breast cancers spread to bone
2. Princeton investment conference explores revolutionary laser-based medical diagnostics
3. Princeton technique puts chemistry breakthroughs on the fast track
4. Study: Choice between stroke-prevention procedures influenced by patient age
5. UNC study: Obese 3-year-olds show early warning signs for future heart disease
6. New Study: Improved Immune System with Gene-Eden, a Natural Antiviral Supplement that Targets Chronic Viruses
7. Henry Ford Hospital study: Shoulder function not fully restored after surgery
8. Study: Federal funds support health depts., but leadership is key
9. Study: Kidney disease a big risk for younger, low-income minorities
10. Study: Mechanomyography to be accurate in detecting nerves during minimally invasive spine surgery
11. Study: Low Levels of Vitamin D Linked to Higher Rates of Asthma in African American Kids
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Princeton study: Nighttime images help track disease from the sky
(Date:12/19/2014)... THURSDAY, Dec. 18, 2014 (HealthDay News) -- Prostaglandin analogue ... -- significantly reduce the risk of vision loss in ... British researchers led by David Garway-Heath, of the ... London, tracked outcomes for more than 500 people newly ... of the disease and one of the leading causes ...
(Date:12/17/2014)... Myo Nwe is the co-author of a new weight loss ... of the Ace Medical Weight Loss Center in Rock Hill, ... at the industry of weight loss, and how several fad ... in television shows, however, she says the topic of obesity ... for basic laughs, which she believes impacts whether Americans view ...
(Date:12/17/2014)... HeartMath® Inc., recognized as one of ... variability (HRV), heart coherence and the physiology of ... and algorithms to chipset manufacturers and consumer electronics ... to offer its HRV solutions, tap into its ... its normative HRV databases and algorithms for developing ...
(Date:12/17/2014)... 17, 2014 No matter how far ... to eradicate the head louse parasite—a common childhood malady ... Each year between six and twelve million individuals will ... lice removal treatment company comes to the rescue, providing ... friendly. With its track record of customer service, and ...
(Date:12/17/2014)... MONDAY, Dec. 15, 2014 (HealthDay News) -- As gas ... and deaths, a new study suggests. In times ... many of those riders are inexperienced, the researchers explained. ... in California, which has the highest number of motorcycle ... number of motorcyclist deaths. The analysis revealed a ...
Breaking Medicine News(10 mins):Health News:Study Supports Benefit of Widely Used Glaucoma Drug 2Health News:Obesity Should Not Be a Hollywood Punchline, Weight Loss Doc Says 2Health News:HeartMath® Inc.’s HRV Platform Solutions Available for Licensing 2Health News:HeartMath® Inc.’s HRV Platform Solutions Available for Licensing 3Health News:Lice Troopers Announces New Lice Treatment Clinic in Coral Gables to Service Key Biscayne, Coconut Grove, Kendall, Brickell & South Miami 2Health News:When Gas Prices Go Up, So Do Motorcycle Accidents, Study Finds 2
... first astronaut, involved in a 25 million dollar space ... on the growth of cancer cells in outer space, ... conduct research on cells, bacteria and the crystallisation of ... Molecule Medical Institute at the National University of Malaysia. ...
... College London have found that injections of stem cells ... of children with brittle bone disease , osteogenesis imperfecta ... foetuses by DNA testing or ultrasound, disrupts collagen production, ... the condition suffer fractures while in the womb, and ...
... on Wednesday proposed uprooting excess vineyards and launching an ... strategy aimed at soaking up glut and countering New ... that the European Union's annual wine budget of 1.3 ... "a very inefficient way" despite huge challenges facing the ...
... cat allergen is associated with greater bronchial responsiveness (BR) ... they are not specifically allergic to cats. This suggests ... allergic individuals, regardless of their specific allergies. ... lead author of the study. We presupposed that we ...
... Makes a Lot of Noise has had to turn it ... effect this week . But where there are 8,000,000 New ... of Environmental Protection has a phone line, 311, for quality-of-life ... callers say, is distracting, annoying, shrill, dull or rattling -- ...
... after tests on three dead swans in the northeast confirmed an ... fatal to humans. ,"France is not threatened by ... moment, a human contamination from the H5N1 virus," Health Minister Roselyne ... as the great flu epidemic that followed the war of 1914, ...
Cached Medicine News:Health News:EU Aims to Shake Up Wine Industry With Root-and-branch Reform 2Health News:Cat Exposure Increases Bronchial Responsiveness 2Health News:New York, the City That Roars 24/7, is Forced to Quiet Down 2Health News:New York, the City That Roars 24/7, is Forced to Quiet Down 3Health News:France Steps Up Vigilance After Bird Flu Outbreak 2
(Date:12/17/2014)... ANGELES , Dec. 17, 2014  ImmunoCellular ... the US Patent and Trademark Office (USPTO) has ... ICT-107, a dendritic cell-based immunotherapeutic vaccine targeting six ... The claims of US Patent No. 8,871,211, which ... neural cancer by administering a dendritic cell composition ...
(Date:12/17/2014)... and RALEIGH, N.C. ... Marketing Communications, LLC (CTMC), and Integrated Clinical Trial ... recruitment and retention for clinical trials announce that ... Clinical Trial Marketing Services (i-CTMS). i-CTMS will provide ... services to pharmaceutical, biotechnology and medical device companies. ...
(Date:12/15/2014)... 2014 Research and Markets ( ... "MEMS Gyroscopes Analog Devices ADIS16136 Precision Angular ... their offering. http://photos.prnewswire.com/prnh/20130307/600769 ... applications made a lot of progress in the ... are now accepted in high-reliability environments, and are ...
Breaking Medicine Technology:ImmunoCellular Therapeutics Announces Issuance of Key Patent For ICT-107 Cancer Vaccine 2Integrated Clinical Trial Services and Clinical Trial Marketing Communications Form Joint Venture 2Integrated Clinical Trial Services and Clinical Trial Marketing Communications Form Joint Venture 3MEMS Gyroscopes Analog Devices ADIS16136 Precision Angular Rate Sensor Reverse Costing Analysis 2
... Aug. 30 Hologic, Inc. (Nasdaq: HOLX ... Executive Officer, will present at the 2010 Morgan Stanley ... 2:45 p.m. (Eastern). Interested parties are invited ... investor presentation on the investor section of the company,s ...
... AMEX: DDD ) today announced that it has ... support for the Company,s new line of extended-release nutritional and ... www.emersongroup.com ), headquartered in Wayne, Pa., is a consumer products ... to companies in the United States market.  ...
Cached Medicine Technology:SCOLR Pharma, Inc. Signs Agreement with The Emerson Group to Provide Sales Support for Nutritional & OTC Products 2SCOLR Pharma, Inc. Signs Agreement with The Emerson Group to Provide Sales Support for Nutritional & OTC Products 3
The narrow shaft and compact jaw design facilitates access and use in tight spaces, particularly useful in the posterior aspect of the knee....
... Hand Instruments were developed in surgeon's desire ... still having an instrument with the strength ... fear of the bending or breaking. Arthrotek ... to conform to the surgeon's hand. This ...
... Precision Hand Instruments were developed in surgeon's ... while still having an instrument with the ... the fear of the bending or breaking. ... manufactured to conform to the surgeon's hand. ...
... Hand Instruments were developed in surgeon's desire ... still having an instrument with the strength ... fear of the bending or breaking. Arthrotek ... to conform to the surgeon's hand. This ...
Medicine Products: