Valdosta Daily Times

Top News

August 1, 2013

As climate, disease links become clearer, study highlights need to forecast future shifts

ATHENS — Climate change is affecting the spread of infectious diseases worldwide, according to an international team of leading disease ecologists, with serious impacts to human health and biodiversity conservation. Writing in the journal Science, they propose that modeling the way disease systems respond to climate variables could help public health officials and environmental managers predict and mitigate the spread of lethal diseases.

The issue of climate change and disease has provoked intense debate over the past decade, particularly in the case of diseases that affect humans, according to the University of Georgia’s Sonia Altizer, who is the study’s lead author.

“For a lot of human diseases, responses to climate change depend on the wealth of nations, healthcare infrastructure and the ability to take mitigating measures against disease,” said Altizer, an associate professor in the UGA Odum School of Ecology. “The climate signal, in many cases, is hard to tease apart from other factors like vector control and vaccine and drug availability.”

Climate warming already is causing changes in diseases affecting wildlife and agricultural ecosystems, she said. “In many cases, we’re seeing an increase in disease and parasitism. But the impact of climate change on these disease relationships depends on the physiology of the organisms involved, the location on the globe and the structure of ecological communities.”

At the organism level, climate change can alter the physiology of both hosts and parasites. Some of the clearest examples are found in the Arctic, where temperatures are rising rapidly, resulting in faster developing parasites. A lungworm that affects muskoxen, for instance, can now be transmitted over a longer period each summer, making it a serious problem for the populations it infects.

“The Arctic is like a ‘canary in the global coal mine,’” said co-author Susan Kutz of the University of Calgary and Canadian Cooperative Wildlife Health Centre.

Text Only
Top News
  • Michigan affirmative ban is OK, Supreme Court says

    A state’s voters are free to outlaw the use of race as a factor in college admissions, the Supreme Court ruled Tuesday in a blow to affirmative action that also laid bare tensions among the justices about a continuing need for programs that address racial inequality in America.

    April 23, 2014

  • ‘Piles and piles’ of bodies in South Sudan slaughter

    Gunmen who targeted both children and the elderly left “piles and piles” of bodies — many of those in a mosque — in a provincial capital in South Sudan, the U.N.’s top humanitarian official in the country said Tuesday.

    April 23, 2014

  • Obama_Stew.jpg Obama views mudslide scene

    Swooping over a terrain of great sadness and death, President Barack Obama took an aerial tour Tuesday of the place where more than three dozen people perished in a mudslide last month, then mourned privately with those who lost loved ones in the destruction.

    April 23, 2014 1 Photo

  • Wall Street_Stew.jpg Earnings and corporate deals lift U.S. stocks

    Corporate deals and some solid earnings reports propelled the stock market to its sixth straight gain Tuesday.

    April 23, 2014 1 Photo

  • Economy College Gradu_Stew.jpg Job market for college grads better but still weak

    With college commencement ceremonies nearing, the government is offering a modest dose of good news for graduating seniors: The job market is brightening for new grads — a bit.

    April 23, 2014 1 Photo

  • Supreme Court TV On t_Stew.jpg Internet TV case: Justices skeptical, concerned

    Grappling with fast-changing technology, Supreme Court justices debated Tuesday whether they can protect the copyrights of TV broadcasters to the shows they send out without strangling innovations in the use of the internet.

    April 23, 2014 1 Photo

  • Today in History

    In 1791, the 15th president of the United States, James Buchanan, was born in Franklin County, Pa.

    April 23, 2014

  • Stowaway teen forces review of airport security

    A 15-year-old boy found his way onto an airport’s tarmac and climbed into a jetliner’s wheel well, then flew for five freezing hours to Hawaii — a misadventure that forced authorities to take a hard look at the security system that protects the nation’s airline fleet.

    April 22, 2014

  • South Korea Ship Sink_Rich copy.jpg Death count in ferry sinking tops 100

    One by one, coast guard officers carried the newly arrived bodies covered in white sheets from a boat to a tent on the dock of this island, the first step in identifying a sharply rising number of corpses from a South Korean ferry that sank nearly a week ago.

    April 22, 2014 1 Photo

  • AP520422034 copy.jpg Today in History for Tuesday, April 22, 2014

    Today is Tuesday, April 22, the 112th day of 2014. There are 253 days left in the year.

    April 22, 2014 1 Photo

Top News
Poll

Given the amount of rain recently, what's your favorite “rain” song?

Singing in the Rain
Purple Rain
Have You Ever Seen the Rain?
November Rain
Rainy Night in Georgia
Other
     View Results