Download - Agricultural Antibiotic Overuse
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Agricultural Antibiotic Overuse
Profits Before Public Health
Martin Donohoe
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Am I Stoned?
A 1999 Utah anti-drug pamphlet warns:
“Danger signs that your child may be smoking marijuana include excessive preoccupation with social causes, race relations, and environmental issues”
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Food Safety/Food Justice
• Poverty and hunger• Food waste• Environmental Degradation–Climate change, loss of arable land,
water shortages, soil erosion, pesticides, indoor smoke exposure from biomass
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Food Safety/Food Justice
• War
• GMOs, biopharming
• Hormones in the meat and milk supply (rBGH, others)
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Problems with the Integrity of the Food System
• Other food-borne infections–Vegetables and produce (esp. sprouts)–Raw milk
• 39% of seafood sold in US mis-labelled• Pink slime–NH4OH-treated beef trimmings
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Problems with the Integrity of the Food System
• Horsemeat in UK, EU• Multiple food recalls–Almost 9 million lbs of meat and
poultry recalled in 2010–37 fruit/vegetable recalls in 2011 (2 in
2005)• Inspection system woefully
underfunded/understaffed
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Agricultural Antibiotic Overuse
• Non-theraputic use – Livestock: 71%• Use up 50% over the last 15 years
• Therapy – livestock: 8%• Other (soaps, pets, etc.): 10%• Therapy – humans: 15%
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Agricultural vs. Human Antibiotic Sales
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US Leads the World in Agricultural Antibiotic Use (WHO, 2012)
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Agricultural Antibiotic Use
• Almost 9 billion animals per year “treated” to “promote growth”– Given in feed for cows and pigs, in water for
poultry– Claim: Larger animals, fewer infections in herd
• 84% of beef cattle, 83% of pigs, and 40-50% of poultry given non-therapeutic antibiotics
• 50-75% of antibiotics end up in waste stream (then soil and water)
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Antibiotic Class – Feed Additive Antibiotics
• Penicillins - Penicillin• Tetracyclines - Chlortetracycline, Oxytetracycline• Aminoglycosides - Apramycin• Streptogramins - Virginiamycin• Macrolides - Erythromycin, Oleandomycin,
Tylosin• Clindamycin (Lincosamide class) - Lincomycin• Sulfonamides - Sulfamethazine, Sulfathiazole
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Antibiotic-Resistant Human Infections
“Antibiotic use in food animals is the dominant source of antibiotic resistance among food-borne pathogens.” (CDC)
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Antibiotic-Resistant Human Infections
• CDC: 48-76 million people suffer foodborne illnesses each year in the U.S.–325,000 hospitalizations–3,000 - 5,000 deaths–Increased risk of autoimmune
disorders (GI, rheumatic diseases)–> $156 billion/yr in medical costs, lost
wages, and lost productivity
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Antibiotic-Resistant Human Infections
• Associated with longer hospital stays, treatment with second- and third-line antibiotics that may be less effective, more toxic, and/or more expensive
• High risk groups– Very young– Seniors– AIDS, cancer, transplants, immunosuppressants
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Agricultural Antibiotic Overuse May Lead to Alterations in Human Microbiome
• Changes linked to:– immune system development and function– autoimmune and allergic conditions– hormonal and reproductive disorders– diabetes– Autism– cancers
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Consequences of Agricultural Antibiotic Use
• Campylobacter fluoroquinolone resistance– Campylobacter = most common food-borne
infection in US– 2.5 million case of diarrhea and 100 deaths per
year– Increased dramatically in 1990s and 2000s– 2009: Campylobacter found in 62%, Salmonella in
14%, and both in 8% of store-bought chickens
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Fluoroquinolone-Resistant Campylobacter Infections
• Animal Use
– Sarafloxacin (Saraflox) – Abbott Labs – voluntarily withdrawn from market (2001)
– Enrofloxacin (Baytril) – Bayer – FDA withdraws approval (7/05)
• Human Use
– Ciprofloxacin (Cipro) and moxifloxacin (Avelox) - Bayer
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Consequences of Agricultural Antibiotic Use
• Vancomycin-resistant Enterococcus faecium (VREF, due to avoparcin use in chickens)
• Synercid-resistant infections (agent of last resort for vancomycin-resistant bacteria; due to Virginiamycin use)
• Gentamycin- and Cipro-resistant E. coli in chickens–Linked to E.coli UTIs in humans
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Consequences of Agricultural Antibiotic Use
• Methicillin-resistant Staph aureus (MRSA) in pork, chickens– 49% of pigs and 45% of pig farmers harbor MRSA– MRSA carriage higher in those living near cattle
and pig farms– One study found 30% of US grocery store pork
cuts tainted with MRSA– MRSA from animals thought to be responsible for
more than 20% of human MRSA cases in the Netherlands
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Regulatory Advances
• FDA bans fluoroquinolone use in poultry (2005)
• EU bans use of all antibiotic growth promoters (2006)
• FDA bans off-label use of cephalosporins in food animals (2008); further restrictions (2012)
• 2010: FDA urges phasing out antibiotic use
• 2012: FDA issues voluntary guidelines to reduce antibiotic use
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Regulatory Advances
• FDA considering banning PCNs and tetracyclines in food animals (2012/13)
• Preservation of Antibiotics for Medical Treatment Act – awaiting vote in Congress
• AMA, AAP, APHA, IDS, UCS, Consumers’ Union, others all oppose non-therapeutic antibiotic use in livestock
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Agricultural Antibiotics
• Three years after a Danish ban on routing use of antibiotics in chicken farming, the prevalence of antibiotic-resistant bacteria in chickens dropped from 82% to 12%
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Antibiotic Use in Seafood• 91% of US seafood imported– Most from Asia– FDA inspects 2% at most
• Antibiotic overuse• Klebsiella resistant to up to 8 different antibiotics in
1/5 of Thai shrimp (largest importer) (FDA, 2012)• Nitrofurans (carcinogenic, banned in US) found in 1/5
of Asian shrimp (FDA, 2008)• Vietnamese shrimp with traces of fluoroquinolones• Antibiotic-resistant land-based pathogens increasingly
found in marine organisms
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Alternatives to Agricultural Antibiotic Use
• Organic farming
• Decrease overcrowding
• Better diet/sanitation/living conditions
• Control heat stress
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Alternatives to Agricultural Antibiotic Use
• Vaccination• Increased use of bacterial cultures and specific
antibiotic treatment in animals when indicated• Vegetarianism
• Ban on non-therapeutic antibiotic use in US would increase per capita costs by $5-10 (National Research Council), but would decrease health care costs and other economic losses (likely by much more)
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We
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WHO Director-General Dr Margaret Chan (2011)
“In the absence of urgent corrective and protective actions, the world is heading towards a post-antibiotic era, in which many common infections will no longer have a cure and, once again, kill unabated.”
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Factory Farming
• Large CAFOs make up 5% of livestock operations but produce more than 50% of food animals
• CAFOs increasing, small family farms decreasing• 11,000 CAFOs in U.S.– Flourished thanks to indirect federal subsidies– Not subject to Clean Air Act Standards– Have replaced industrial factories as the # 1
polluters of American waterways
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Factory Farming
• 1.4 billion tons animal waste generated/yr
in U.S. (13 billion tons worldwide)
–130 x human waste (in U.S.)
–1 hog farm in NC generates as much
sewage annually as all of Manhattan
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Factory Farm Waste
• Most untreated• Ferments in open pools• Seeps into local water supply, estuaries–Kills fish–Causes human infections - e.g.,
Pfisteria pescii (Chesapeake Bay)
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Factory Farm Waste• Foul odors and contaminated water
reduce property values in surrounding communities by an estimated $26 billion
• Widely disseminated by floods/hurricanes
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The Bad News
• Agricultural antibiotic use in China dramatically increasing (pork), unregulated
• “Ag-Gag” laws (aimed at preventing employees, journalists, and activists from exposing illegal or unethical practices)
• “Right to Farm” Acts – to prevent lawsuits by neighbors of factory farms (for air and water pollution, property devaluation)
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Corporations
• Internalize profits
• Externalize health and environmental costs
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Corporate PR tactics
• Characterize opposition as “technophobic,” anti-science,” and “against progress”
• Portray their products as environmentally beneficial despite evidence to the contrary
• Public Relations (Greenwash)• Sponsored educational materials• Co-opting academia• Lobbying, political donations
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Agricultural/Biotech Companies
• Many major agricultural biotech companies also pharmaceutical companies (*):– Novartis Seeds*– Aventis CropScience*– Bayer CropScience*– BASF*– Dow*– Syngenta– Dupont/Pioneer
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Pharmaceutical Industry
• Influence over physicians through control of CME, gifts, research funding
• Conduct seeding trials to alter prescribing patterns
• Secrecy, statistical torturing of data sets, selective publication
• Data mining of prescribing practices for marketing purposes
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Pharmaceutical Industry
• The largest defrauder of the federal government (as determined by payments made for violations of the federal False Claims Act)–Accounted for 25% of all FCA payouts
between 2000 and 2010–Defense industry – 11%
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Pharmaceutical Industry
• $240 million dollars spent on lobbying in 2011–1,228 lobbyists (2.3 for every member
of Congress)–Revolving door between legislators,
lobbyists, executives and government officials
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Pharmaceutical Industry
• Effectively lobbied and threatened trade sanctions against developing countries in order to prevent production and importation of much cheaper, generic versions of life-saving anti-AIDS drugs
• Sneak patent extensions / carve-outs into Congressional measures
• Bayer/Cipro/Anthrax
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Solutions
• Public Education
• Legal
• Legislative–PAMTA, etc.
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Günter Grass
“The first job of a citizen is to keep your mouth open.”
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African Proverb
If you think you are too small to have an impact, try going to bed with a mosquito in your tent
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Contact Information and References
Public Health and Social Justice Website
http://www.publichealthandsocialjustice.org
http://[email protected]