The Clinton Herald, Clinton, Iowa

Lifestyles

December 5, 2012

How animals spread diseases to us

(Continued)

IOWA CITY —

So, Why Aren't We All Dead?

With so many potentially deadly organisms lurking in the animal species we share the Earth with, the question becomes not if we'll have another novel pandemic, but when. However, these events — the new influenzas, the SARS coronaviruses, the HIV outbreaks — are actually relatively rare. "Spillover" events — an individual becoming infected with a zoonotic pathogen — are common, but typically the infected host is a dead end. He or she doesn't spread the germ to a second person, which is necessary for an epidemic (which is a localized outbreak) or a pandemic (a worldwide infection) to occur. Going back to H5N1 influenza versus H1N1, that's why the former has caused only sporadic outbreaks and the latter has become pandemic. H1N1 is readily transmissible between people, and H5N1 (so far) is not. This is also why there was so much concern earlier this year when a genetically modified H5N1 was created in a laboratory setting. This modified virus was able to spread readily between ferrets, a common animal model for human influenza research. The work caused worry that such a virus may escape from a lab and spread in the wild — "The Stand" come to life.

This controversy also highlights the difficulty in studying potential zoonotic pathogens. Many of these organisms have adapted to their hosts and do not always cause symptoms in their "natural" species. As such, it's difficult to anticipate which microbes will 1) make the species jump successfully; 2) cause illness in the new host species (for example, in humans); and 3) transmit efficiently among members of the new host species. Prediction right now is very foggy, though we're beginning to better understand the diversity of organisms out there, and with that, hopefully gain understanding into why some spill over and others do not.

Text Only
Lifestyles
  • The virtues of lying

    Two computational scientists set out recently to simulate the effects of lying in a virtual human population. Their results, published in the Proceedings of the Royal Society B, show that lying is essential for the growth of a cohesive social network.

    July 31, 2014

  • The Clinton Herald Jim Miller Low-cost, free cellphone options for seniors DEAR SAVVY SENIOR: What are the cheapest cell phone options available today to seniors living on a shoestring budget? I only need it for occasional calls. — Seldom Calling SeniorDEAR SELDOM: For financially challenged seniors who only want a cell pho

    July 19, 2014 1 Photo

  • Off to market: Fulton Buy-Way yard sales are Aug. 8 and 9

    Flea market fans and bargain shoppers will once again make their way to Fulton.

    July 31, 2014

  • School supplies offered at events

    With students going back to school soon, Clinton families will have two opportunities to receive free back-to-school supplies.

    July 30, 2014

  • CATS-DOGS281.jpg Where cats are more popular than dogs in the U.S.-and all over the world

    We all know there are only two types of people in the world: cat people and dog people. But data from market research firm Euromonitor suggest that these differences extend beyond individual preferences and to the realm of geopolitics: it turns out there are cat countries and dog countries, too.

    July 29, 2014 1 Photo

  • YWCA offers lifeguard training

    CLINTON — The YWCA will offer lifeguard training in August.The course will be held from Aug. 4 to 10 at the YWCA. This 30-hour class will meet from 5 to 9 p.m. for four weeknights and from 1 to 5 p.m. Saturday. A possibility of adding a class from 1

    July 25, 2014

  • GPS race Teams race to complete challenges THOMSON, Ill. — A challenge in August will pit teams against each other to complete a series of challenges.The event will begin at 9 a.m. Aug. 16 at the Upper Mississippi River National Wildlife and Fish Refuge in Thomson. Armed with GPS units, teams

    July 25, 2014 1 Photo

  • Habitat for Humanity hosts fundraiser

    CLINTON — Habitat for Humanity will host a fundraiser in Thomson, Illinois.The Clinton County group will showcase Laid Back Luau from 5 to 8 p.m. Friday, Aug. 8, at Heirloom Cafe in Thomson. The event will feature games, prizes, music train rides for

    July 25, 2014

  • Fire departments undergo grain bin rescue training OMAHA — The Goose Lake and Lost Nation Volunteer Fire Departments each have received lifesaving grain bin rescue equipment through a donation from Farm Credit Services of America.Goose Lake received its equipment July 14 and Lost Nation on July 15. E

    July 24, 2014

  • ADM donates $75K for fire boat purchase CLINTON — Archer Daniels Midland Company has donated $75,000 to the city of Clinton for a new fire and rescue boat for the Clinton Fire Department.The boat will help the fire department respond to fires, administer emergency medical services and resp

    July 24, 2014

Front page
Clinton Herald Photos


Browse, buy and submit pictures with our photo site.

Poll

Should the city of Clinton appeal the open records violation ruling that will cost taxpayers $40,600?

Yes
No
     View Results
AP Video
Olympics 2014
Featured Comment
Featured Ads
Blue Zones Project
Parade
Magazine

Click HERE to read all your Parade favorites including Hollywood Wire, Celebrity interviews and photo galleries, Food recipes and cooking tips, Games and lots more.