Ken Koehler, a business consultant who was stricken by an antibiotic-resistant strain of salmonella, stands in front of a grocery store where he buys his meat in Saco, Maine November 3, 2014. Picture taken November 3, 2014. To match Special Report FARMACEUTICALS-CEFTIOFUR/ REUTERS/Brian Snyder (UNITED STATES - Tags: FOOD HEALTH DRUGS SOCIETY) 

ANTIBIOTIC-CHARTS/ - Charts anti-biotic resistant salmonella in chicken. Accompanies Reuters Special Report. (SIN10) 

Carol Loboto, 77, who was sickened by tainted eggs testifies before the House Oversight and Investigations Subcommittee hearing on the "Outbreak of Salmonella in Eggs" on Capitol Hill in Washington September 22, 2010. REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS HEALTH AGRICULTURE BUSINESS) 

Sarah Lewis, 30, who was sickened by tainted eggs testifies before the House Oversight and Investigations Subcommittee hearing on the "Outbreak of Salmonella in Eggs" on Capitol Hill in Washington September 22, 2010. REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS AGRICULTURE BUSINESS HEALTH) 

Sarah Lewis, 30, who was sickened by tainted eggs testifies before the House Oversight and Investigations Subcommittee hearing on the "Outbreak of Salmonella in Eggs" on Capitol Hill in Washington September 22, 2010. REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS AGRICULTURE BUSINESS HEALTH) 

Carol Loboto (L), 77, and Sarah Lewis, 30, who were sickened by tainted eggs are sworn in before the House Oversight and Investigations Subcommittee hearing on the "Outbreak of Salmonella in Eggs" on Capitol Hill in Washington September 22, 2010. REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS AGRICULTURE BUSINESS HEALTH) 

Austin DeCoster (L), owner of Wright County Egg, and his son Peter DeCoster testify before the House Oversight and Investigations Subcommittee hearing on the "Outbreak of Salmonella in Eggs" on Capitol Hill in Washington September 22, 2010. REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS AGRICULTURE HEALTH BUSINESS) 

Austin DeCoster, owner of Wright County Egg, testifies before the House Oversight and Investigations Subcommittee hearing on the "Outbreak of Salmonella in Eggs" on Capitol Hill in Washington September 22, 2010. REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS HEADSHOT AGRICULTURE BUSINESS HEALTH IMAGES OF THE DAY) 

Austin DeCoster, owner of Wright County Egg, testifies before the House Oversight and Investigations Subcommittee hearing on the "Outbreak of Salmonella in Eggs" on Capitol Hill in Washington September 22, 2010. REUTERS/Yuri Gripas (UNITED STATESPOLITICS BUSINESS - Tags: POLITICS AGRICULTURE HEALTH BUSINESS) 

Protesters hold a banner as Austin DeCoster (L), owner of Wright County Egg, and his son Peter DeCoster testify before the House Oversight and Investigations Subcommittee hearing on the "Outbreak of Salmonella in Eggs" on Capitol Hill in Washington September 22, 2010. REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS AGRICULTURE BUSINESS HEALTH) 

Austin DeCoster (L), owner of Wright County Egg, his son Peter DeCoster and Orland Bethel (R), president of Hillandale Farms of Iowa, are sworn in before the House Oversight and Investigations Subcommittee hearing on the "Outbreak of Salmonella in Eggs" on Capitol Hill in Washington September 22, 2010. REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS AGRICULTURE BUSINESS HEALTH) 

Austin DeCoster (C), owner of Wright County Egg, and his son Peter DeCoster (R) arrive at the House Oversight and Investigations Subcommittee hearing on the "Outbreak of Salmonella in Eggs" on Capitol Hill in Washington September 22, 2010. REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS HEALTH AGRICULTURE BUSINESS) 

Austin DeCoster (L), owner of Wright County Egg, and Orland Bethel, president of Hillandale Farms of Iowa arrive at the House Oversight and Investigations Subcommittee hearing on "The Outbreak of Salmonella in Eggs" on Capitol Hill in Washington September 22, 2010. REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS BUSINESS AGRICULTURE HEALTH) 

Austin DeCoster, owner of Wright County Egg, is sworn in before the House Oversight and Investigations Subcommittee at a hearing on the outbreak of salmonella in eggs on Capitol Hill in Washington September 22, 2010. REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS) 

A PETA (People for the Ethical Treatment of Animals) model dressed as a chicken hands out egg-free vegan cupcakes near the White House in Washington August 25, 2010. U.S. regulators on Monday were still investigating the massive salmonella outbreak that sparked a recall of more than a half billion eggs, while lawmakers launched their own probes and consumer advocates urged passage of a law to give food regulators more power. REUTERS/Kevin Lamarque (UNITED STATES - Tags: BUSINESS POLITICS FOOD) 

A PETA (People for the Ethical Treatment of Animals) model dressed as a chicken hands out egg-free vegan cupcakes near the White House in Washington August 25, 2010. U.S. regulators on Monday were still investigating the massive salmonella outbreak that sparked a recall of more than a half billion eggs, while lawmakers launched their own probes and consumer advocates urged passage of a law to give food regulators more power. REUTERS/Kevin Lamarque (UNITED STATES - Tags: BUSINESS POLITICS FOOD) 

PETA (People for the Ethical Treatment of Animals) models dressed as chickens hand out egg-free vegan cupcakes near the White House in Washington August 25, 2010. U.S. regulators on Monday were still investigating the massive salmonella outbreak that sparked a recall of more than a half billion eggs, while lawmakers launched their own probes and consumer advocates urged passage of a law to give food regulators more power. REUTERS/Kevin Lamarque (UNITED STATES - Tags: BUSINESS POLITICS FOOD) 

A PETA (People for the Ethical Treatment of Animals) model dressed as a chicken hands out egg-free vegan cupcakes near the White House in Washington August 25, 2010. U.S. regulators on Monday were still investigating the massive salmonella outbreak that sparked a recall of more than a half billion eggs, while lawmakers launched their own probes and consumer advocates urged passage of a law to give food regulators more power. REUTERS/Kevin Lamarque (UNITED STATES - Tags: BUSINESS POLITICS FOOD) 

A plate of fried eggs are pictured at a Washington cafe, August 23, 2010. The U.S. Food and Drug Administration commissioner on Monday said there may be more recalls of eggs in the salmonella outbreak and the agency did not yet know how the eggs and chickens were contaminated. REUTERS/Jason Reed (UNITED STATES - Tags: FOOD HEALTH) 

A plate of fried eggs are pictured at a Washington cafe, August 23, 2010. The U.S. Food and Drug Administration commissioner on Monday said there may be more recalls of eggs in the salmonella outbreak and the agency did not yet know how the eggs and chickens were contaminated. REUTERS/Jason Reed (UNITED STATES - Tags: FOOD HEALTH) 

Eggs are pictured for sale at a Washington supermarket, August 23, 2010. The U.S. Food and Drug Administration commissioner on Monday said there may be more recalls of eggs in the salmonella outbreak and the agency did not yet know how the eggs and chickens were contaminated. REUTERS/Jason Reed (UNITED STATES - Tags: FOOD HEALTH) 

A notice at a Washington supermarket describes a nationwide recall of eggs, August 23, 2010. The U.S. Food and Drug Administration commissioner on Monday said there may be more recalls of eggs in the salmonella outbreak and the agency did not yet know how the eggs and chickens were contaminated. REUTERS/Jason Reed (UNITED STATES - Tags: FOOD HEALTH) 

A sign in the egg case at a local Safeway grocery store details Lucerne brand eggs that have been recalled at the store in Golden, Colorado August 21, 2010. A second Iowa egg farm is recalling eggs as part of an investigation into a U.S. salmonella outbreak that is linked to almost 300 illnesses across the country. REUTERS/Rick Wilking (UNITED STATES - Tags: BUSINESS FOOD HEALTH) 

A bag of pistachio nuts is shown in San Francisco, California March 31, 2009. A California nut grower and processor issued a nationwide recall of pistachios on Tuesday due to possible salmonella contamination, and authorities said consumers should avoid all pistachio products until more information was available.REUTERS/Robert Galbraith (UNITED STATES HEALTH ENVIRONMENT BUSINESS) 

Bags of pistachio nuts are shown at the Ferry Plaza Farmers Market in San Francisco, California March 31, 2009. A California nut grower and processor issued a nationwide recall of pistachios on Tuesday due to possible salmonella contamination, and authorities said consumers should avoid all pistachio products until more information was available. REUTERS/Robert Galbraith (UNITED STATES ENVIRONMENT HEALTH) 

The building of the now-closed Peanut Corporation of America plant is pictured in Blakely, Georgia on January 29, 2009. The U.S. government launched a criminal investigation on January 30, 2009, after salmonella found at the plant in rural southwest Georgia have been linked to making 500 people sick and may have killed eight people. Picture taken January 29. REUTERS/Matthew Bigg (UNITED STATES) 

Jalapeno peppers are shown for sale at a Los Angeles market in Los Angeles, California July 22, 2008. The U.S. Food and Drug Administration has found a jalapeno pepper contaminated with a strain of salmonella that has sickened more than 1,200 people, officials said on Monday. The pepper, which showed up at a south Texas distribution facility, originated in Mexico but could have been contaminated in a variety of places, the FDA said. REUTERS/Fred Prouser (UNITED STATES) 

Jalapeno peppers purchased at a Los Angeles market are pictured in Los Angeles, California July 22, 2008. The U.S. Food and Drug Administration has found a jalapeno pepper contaminated with a strain of salmonella that has sickened more than 1,200 people, officials said on Monday. The pepper, which showed up at a south Texas distribution facility, originated in Mexico but could have been contaminated in a variety of places, the FDA said. REUTERS/Fred Prouser (UNITED STATES) 

Jalapeno peppers are pictured in Los Angeles, California July 22, 2008. The U.S. Food and Drug Administration has found a jalapeno pepper contaminated with a strain of salmonella that has sickened more than 1,200 people, officials said on Monday. The pepper, which showed up at a south Texas distribution facility, originated in Mexico but could have been contaminated in a variety of places, the FDA said. REUTERS/Lucy Nicholson (UNITED STATES) 

Jalapeno peppers are pictured in Encinitas, California July 22, 2008. The U.S. Food and Drug Administration has found a jalapeno pepper contaminated with a strain of salmonella that has sickened more than 1,200 people, officials said on Monday. The pepper, which showed up at a south Texas distribution facility, originated in Mexico but could have been contaminated in a variety of places, the FDA said. REUTERS/Mike Blake (UNITED STATES) 

A jalapeno pepper is pictured in Encinitas, California July 22, 2008. The U.S. Food and Drug Administration has found a jalapeno pepper contaminated with a strain of salmonella that has sickened more than 1,200 people, officials said on Monday. The pepper, which showed up at a south Texas distribution facility, originated in Mexico but could have been contaminated in a variety of places, the FDA said. REUTERS/Mike Blake (UNITED STATES) 

Jalapeno peppers are pictured in Encinitas, California July 22, 2008. The U.S. Food and Drug Administration has found a jalapeno pepper contaminated with a strain of salmonella that has sickened more than 1,200 people, officials said on Monday. The pepper, which showed up at a south Texas distribution facility, originated in Mexico but could have been contaminated in a variety of places, the FDA said. REUTERS/Mike Blake (UNITED STATES) 

Jalapeno peppers are pictured in Encinitas, California July 22, 2008. The U.S. Food and Drug Administration has found a jalapeno pepper contaminated with a strain of salmonella that has sickened more than 1,200 people, officials said on Monday. The pepper, which showed up at a south Texas distribution facility, originated in Mexico but could have been contaminated in a variety of places, the FDA said. REUTERS/Mike Blake (UNITED STATES) 

A tomato sliced in half is seen in Medford, Massachusetts July 17, 2008. U.S. regulators on Thursday lifted a warning on tomatoes and repeated a warning on peppers as the possible cause of an outbreak of Salmonella Saintpaul in which more than 1,200 people have reported getting sick. REUTERS/Brian Snyder (UNITED STATES) 

Tomatoes of different colors are seen in a bowl in Medford, Massachusetts July 17, 2008. U.S. regulators on Thursday lifted a warning on tomatoes and repeated a warning on peppers as the possible cause of an outbreak of Salmonella Saintpaul in which more than 1,200 people have reported getting sick. REUTERS/Brian Snyder (UNITED STATES) 

Tomatoes of different colors are seen in a bowl in Medford, Massachusetts July 17, 2008. U.S. regulators on Thursday lifted a warning on tomatoes and repeated a warning on peppers as the possible cause of an outbreak of Salmonella Saintpaul in which more than 1,200 people have reported getting sick. REUTERS/Brian Snyder (UNITED STATES) 

A pile of tomatoes are seen on display at a wholesale produce market in Washington, June 12, 2008. Representatives from the U.S. Food and Drug Administration and the Centers for Disease Control and Prevention (CDC) said they are continuing to search for the source of the Salmonella outbreak, after reports of people falling ill from eating Salmonella-tainted tomatoes and that they now have 167 reported cases from 17 states. REUTERS/Jim Young (UNITED STATES) 

A pile of tomatoes are seen on display at a wholesale produce market in Washington, June 12, 2008. Representatives from the U.S. Food and Drug Administration and the Centers for Disease Control and Prevention (CDC) said they are continuing to search for the source of the Salmonella outbreak, after reports of people falling ill from eating Salmonella-tainted tomatoes and that they now have 167 reported cases from 17 states. REUTERS/Jim Young (UNITED STATES) 

A pile of tomatoes is seen on display at a wholesale produce market in Washington, June 12, 2008. Representatives from the U.S. Food and Drug Administration and the Centers for Disease Control and Prevention (CDC) said they are continuing to search for the source of the Salmonella outbreak, after reports of people falling ill from eating Salmonella-tainted tomatoes and that they now have 167 reported cases from 17 states. REUTERS/Jim Young (UNITED STATES) 

A notice informing customers about not serving tomatoes is on display at a McDonald's restaurant in Los Angeles June 10, 2008. McDonald's Corp said on Monday it has temporarily stopped serving sliced tomatoes on its sandwiches in the United States as health officials work to pinpoint the source of a Salmonella outbreak. REUTERS/Mario Anzuoni (UNITED STATES) 

A recalled jar of peanut butter is shown with the "2111" product code on the lid in Dallas, Texas, February 15, 2007. ConAgra Foods Inc. told consumers to discard jars of Peter Pan and Great Value peanut butter with a product code beginning with "2111" after the spread was linked to a salmonella outbreak which federal health officials say has sickened 288 people in 39 states. REUTERS/Jessica Rinaldi (UNITED STATES) 

A recalled jar of peanut butter is shown with the "2111" product code on the lid in Dallas, Texas, February 15, 2007. ConAgra Foods Inc. told consumers to discard jars of Peter Pan and Great Value peanut butter with a product code beginning with "2111" after the spread was linked to a salmonella outbreak which federal health officials say has sickened 288 people in 39 states. REUTERS/Jessica Rinaldi (UNITED STATES) 

A Cadbury chocolate bar is displayed in a shop in central London June 23, 2006. Cadbury Schweppes said on Friday it had recalled over 1 million chocolate bars in the UK and Irish markets in a precautionary move, because they could contain minute traces of salmonella. REUTERS/Catherine Benson (BRITAIN) 

Cadbury chocolate bars are displayed in a shop in central London June 23, 2006. Cadbury Schweppes said on Friday it had recalled over 1 million chocolate bars in the UK and Irish markets in a precautionary move, because they could contain minute traces of salmonella. REUTERS/Catherine Benson (BRITAIN) 

Cadbury chocolate bars are displayed in a shop in central London June 23, 2006. Cadbury Schweppes said on Friday it had recalled over 1 million chocolate bars in the UK and Irish markets in a precautionary move, because they could contain minute traces of salmonella. REUTERS/Alessia Pierdomenico (BRITAIN) 

A worker from the Ministry of Agriculture confiscates Mexican eggs from a bus in the border town of Tecun Uman January 12, 2006. Guatemala is struggling to stop the illegal flow of cheap and sometimes spoiled Mexican eggs across its river border after an outbreak in Mexico last month of a low-risk strain of bird flu. The eggs, often weeks old and infested with worms, can carry bird flu as well other diseases like tuberculosis, salmonella and e. coli, officials say. Picture taken January 12, 2006. REUTERS/Daniel LeClair 

Cases of contraband eggs from Mexico sit on the Guatemalan side of the Suchiate river in the border town of Tecun Uman January 12, 2006. Guatemala is struggling to stop the illegal flow of cheap and sometimes spoiled Mexican eggs across its river border after an outbreak in Mexico last month of a low-risk strain of bird flu. The eggs, often weeks old and infested with worms, can carry bird flu as well other diseases like tuberculosis, salmonella and e. coli, officials say. Picture taken January 12, 2006. REUTERS/Daniel LeClair 

Mexican eggs are destroyed by the Guatemalan Ministry of Agriculture in Tecun Uman, Guatemala January 12, 2006. The eggs were confiscated near the Mexican border at a roadblock set up to stop the flow of contraband eggs entering the country. Guatemala is struggling to stop the illegal flow of cheap and sometimes spoiled Mexican eggs across its river border after an outbreak in Mexico last month of a low-risk strain of bird flu. The eggs, often weeks old and infested with worms, can carry bird flu as well other diseases like tuberculosis, salmonella and e. coli, officials say. Picture taken January 12, 2006. REUTERS/Daniel LeClair 

A raft, loaded with eggs from Mexico, illegally crosses the Suchiate river into Guatemala, in the border town of Tecun Uman January 12, 2006. Guatemala is struggling to stop the illegal flow of cheap and sometimes spoiled Mexican eggs across its river border after an outbreak in Mexico last month of a low-risk strain of bird flu. The eggs, often weeks old and infested with worms, can carry bird flu as well other diseases like tuberculosis, salmonella and e. coli, officials say. Picture taken January 12, 2006. REUTERS/Daniel LeClair 

Veterinarian expert Svetlana Holoshnya of St.Petersburg's region laboratory holds up a test-tube with Salmonella bacteria obtained from U.S. poultry March 12, 2002. The laboratory authorities insist that out of 200 tests taken from U.S. poultry in a one month period 16 samples tested positive for the Salmonella bacteria. 

Veterinarian expert Svetlana Holoshnya of St.Petersburg's region
laboratory holds up a test-tube with Salmonella bacteria obtained from
U.S. poultry March 12, 2002. The laboratory authorities insist that out
of 200 tests taken from U.S. poultry in a one month period 16 samples
tested positive for the Salmonella bacteria. REUTERS/Alexander
Demianchuk

AS/WS 

Former U.S. President Bill Clinton listens to an address during an
advertsing conference in Rome Ocotber 25, 2001. Clinton said if the
west did not react to terrorists they would become their accomplices
and this they could not permit. Clinton's Harlem office has received a
vial containing a substance that tested positive for salmonella in the
mail, but Clinton never came into contact with the material, CNN
reported on Thursday. REUTERS/Paolo Cocco

DJM 

Former US President Bill Clinton (R) arrives with his daughter Chelsea
for a dinner in Madrid October 25, 2001. Clinton, former Soviet
President Mikhail Gorbachev and other international leaders and former
leaders are in Madrid to attend an international Conference on
Democratic Transition and Consolidation. Clinton received vials in the
mail tainted by salmonella, but authorities said they saw no connection
to a string of anthrax attacks in New York, Washington and Florida.
REUTERS/Andrea Comas

AC 

Former U.S. President Bill Clinton holds flowers before leaving his
hotel in central Rome October 25, 2001. Clinton said if the west did
not react to terrorists they would become their accomplices and this
they could not permit. Clinton's Harlem office has received a vial
containing a substance that tested positive for salmonella in the mail,
but Clinton never came into contact with the material, CNN reported on
Thursday. REUTERS/Str

PC 

Traffic drives by the Harlem office building where former U.S.
President Bill Clinton's office is located in New York on October 25,
2001. Clinton received a vial containing a substance that tested
positive for salmonella in the mail, but never came into contact with
the material, CNN reported on Thursday. A report said the authorities
believed the package, received three weeks ago at Clinton's Harlem
office, had no relation to a series of anthrax letters that have led to
the deaths of three people and a number of infections since the
September 11 attacks on New York and Washington. REUTERS/Brad Rickerby

BR 

Former U.S. President Bill Clinton waves before leaving his hotel in
central Rome October 25, 2001. Clinton said if the west did not react
to the terrorists they would become their accomplices and this they
could not permit. Clinton's Harlem office received a vial containing a
substance that tested positive for salmonella in the mail, but Clinton
never came into contact with the material, CNN reported on Thursday.
REUTERS/ Paolo Cocco

PC/AA 

Former U.S. President Bill Clinton smiles as he leaves his hotel in
central Rome October 25, 2001. Clinton said if the west did not react
to the terrorists they would become their accomplices and this they
could not permit. Clinton's Harlem office received a vial containing a
substance that tested positive for salmonella in the mail on Thursday
but Clinton never came into contact with the material, CNN reported on
Thursday. REUTERS/ Paolo Cocco

PC/AA 

Pierre Dardenne, Director of Griffith Mediris Belgium, holds a news conference in Fleurus, southern Belgium, October 11. French food firm [Gibieroy], which is suspected of selling rotten meat after having it "ionized" to kill germs, has said that Griffith carried out the treatment. Ionization is used to sterilise food, and kills pathogenic germs like salmonella.
**DIGITAL IMAGE** 

Outside view of the Griffith Mediris plant in Fleurus, southern Belgium, October 11. French food firm [Gibieroy], which is suspected of selling rotten meat after having it "ionized" to kill germs, has said that Griffith carried out the treatment. Griffiths said it worked with [Gibieroy] until 1997, but denies knowledge of any wrong-doing. Ionization is used to sterilise food, and kills pathogenic germs like salmonella.
**DIGITAL IMAGE** 

Pierre Dardenne, Director of Griffith Mediris Belgium, holds a news conference in Fleurus, southern Belgium, October 11. French food firm Gibieroy, which is suspected of selling rotten meat after having it "ionized" to kill germs, has said that Griffith carried out the treatment. Ionization is used to sterilise food, and kills pathogenic germs like salmonella.

NK/