June 8, 2005 - Jaax

advertisement

Bioterrorism, Agroterrorism, and Food Safety

Association of Food and Drug

Officials Annual Conference

Kansas City MO, 8 June 2005

Jerry Jaax

Associate Vice Provost for Research Compliance and University Veterinarian

Kansas State University

It is a complicated world and it is shrinking every day

Emerging… or Intentional??

Biological Warfare

The intentional use of micro-organisms or toxins derived from living organisms to produce death or disease in humans, animals and plants

Bio-terrorism is the random use of these weapons against the public

With the purpose of demoralizing a country, exacting revenge, and/or affecting policy

Potential Targets for Biological Weapons

• Humans

– Pathogenic diseases

Vector-borne diseases

– Zoonotic diseases

Toxins

Food

• Animals

Plants

Materiel

The Challenge in

Talking about

Bioterrorism

Striking a balance between:

• alerting and informing the public with a realistic sense of the risk, without

• exaggerating and arousing harmful or paralyzing fears

Government,

Scientists, and the

Press

Analysis of “Threat Biology” is complex

Information looks different to different people

Accurate conclusions are difficult!!

• No information

Misinformation

Differing Agenda

Different Perspective

Interpretation

• Ideology

Dual-use technologies

Technology explosion

Intent

Biological Agents as

Weapons

.

Sythian arrows dipped in blood of decomposing bodies (400 BC)

Diseased bodies in water supplies

Saliva from rabid dogs in artillery shells (Poland, 1650)

Smallpox infected clothing or blankets

Nomadic Mongols catapult bubonic plague-infested bodies into the Genoese trading post in the Crimea.

German Glanders efforts

Japanese Imperial Units 731 and 100

Anthrax mailings

Ricin mailings

Excludes “Biocrimes”

Food and Water Borne Biocrimes

(1932 - Present)

‘96 - Diane Thompson--Dallas hospital….

Shigella in pastries (12 ill)

‘95 - Debora Green---Kansas City….

Ricin in meals (1 ill)

‘84 - Rajneeshees---Oregon...

Salmonella on salad bar (751 ill)

‘70 - Eric Kranz---Montreal… Ascriis suum in food (4-5 ill)

------

‘66 - Dr. Mitsuru Suzuki---Japan… S. typhi in food (ca.412 ill / 12 dead)

‘39 - Kikuko Hirose---Japan… Salmonella in pastries (12 ill)

‘36 - Tei-Sabro Takahashi---Japan…

Sal . in pastries (10 ill / 4 dead)

‘32 - Prince Mikasa---Japan…

Cholera in fruit (0 ill)

<1200 ill & 16 dead

Implications and Constraints for the Bioweaponeer

• Must be presented as a respirable aerosol

Magic

Involved

Therefore

• Preparation and weaponization may jeopardize viability

• Aerosols are dependant on meteorological conditions

However...

• Contagious agents can be delivered without weaponization

• Some agents can be spread by vectors

Little or No Magic Involved

Courtesy David Franz

Urban Myth: Biologics too sophisticated for terrorist use

Reality: Bloody rag, a blender and a highly contagious virus

1997 - New Zealand farmers illegally introduce rabbit hemorrhagic disease (RHDV) – calicivirus

Circumvented one of the best bio-security systems in the world

Virus entered 3 ways:

 mailed into the country in a vial

 Carried in a vial placed in an air travelers sock

Carried in a handkerchief drenched in blood/tissues from infected rabbit

Infected rabbits - lungs, spleen, and liver

Used kitchen blender to make slurry to mix with rabbit food

Not a human pathogen

Possible Indicators of a BW/BT Attack

• Disease entity not naturally-occurring in the area

• Multiple disease entities in same patients (mixed agent attack)

• Large # of military and civilian casualties (inhabit same area)

• Data suggestive of a massive point source outbreak

• Apparent aerosol or cutaneous route of invasion

• High morbidity and mortality relative to # at risk

• Localized or circumspect area for illness

• Low attack rates for personnel working with filtered air or closed ventilation systems

• Dead sentinel animals of multiple species

• Absence of a competent natural vector in area of outbreak

• Severe disease in previously healthy population

Biodefense is the

"single most significant modern challenge to U.S. sovereignty"

• "biological weapons can be delivered by a few

• present a small signature for which the U.S. has illdeveloped intelligence gathering capability

• conventional concepts of deterrence are not necessarily effective

• the nation has a limited response capability to contain the consequences."

Recommended quadrupling the

DoD biodefense budget

Defense Science Board

July 2002

The Dark Side of Biotechnology

"Biology is about to lose its innocence in a profound way. While physics dominated weapons in the 20th century, biology will dominate weapons in the 21st"

George Poste

Defense Science Board

• “Constructed” polio virus (3 years)

• Virus (Phi X174) built from scratch in 2 weeks (DOE funded project)

• Mouse Pox “super virus”

Prudence or Paranoia???

• Camelpoxvirus is the causative agent of

Camelpox

Causes Pox disease in dromedary camels - Africa and Asia

Iraqi BW lab with genetic engineering capability admittedly worked with the agent

WHY???

Primary human pathogen in non-endemic area?

Genetic modification as BW agent?

Lab surrogate for Variola?

Worried about Camels ??

Biowarfare in the Former Soviet Union

Dr. Ken Alibeckov - Biopreparat

• Defected from the FSU - wrote “Biohazard”

• Defined the scope of the FSU bio programs

• Tens of thousands scientists and technicians

Thousands involved in Offensive Agricultural BW programs

Strategic as well as Tactical Doctrine

Potential proliferation of expertise, technology, agents

The Crux of the Proliferation Problem

"If you are not financially independent, it influences your moral decision-making."

Daan Goosen, former managing director of Roodeplaat

Research Laboratories (RRL) in South Africa

Russian scientists make an average of

$1,644 yearly ($137/mo); the U.S. Labor

Department puts the average annual salary for an American scientist at $59,200.

Chicago Tribune

2004

''We stockpiled hundreds of tons of anthrax and dozens of tons of plague and smallpox near

Moscow and other Russian cities for use against the United States and its allies''

Soviet defector Colonel Kanatjan Alibekov, MD

Biopreparat's deputy chief (1992)

Alibek predicts in “Biohazard” that the threat of biological attack has actually increased as techniques developed in the USSR have ''spread to rogue regimes and terrorist groups . . . they are cheap, easy to make , and easy to use

One gram, or one twenty-eighth of an ounce, highgrade anthrax can hold up to 100 billion spores.

Estimated conservatively, at 10,000 spores to a lethal dose, one gram in theory could cause about

10 million deaths

Ken Alibek

Anthrax

Spores

Pulmonary

(aerosol) 80%

• Spore form is extremely stable

• Inhalational disease highly lethal

• Starter cultures widely available

• Weaponized by all major offensive BW programs

• Susceptible population

Anthrax

Cutaneous (contact) 20%

Gastro-intestinal (oral)

**Not contagious from one individual to the other

Plague

ATLANTA, Mar 20, 2002 (BW HealthWire) –

“ Pneumonic plague

.. has the dubious distinction of placing high on the CDC list of agents that could be deployed as a bioterror weapon, according to a report in the March 20

Bioterror Medical Alert.”

“While experts note that an aerosolized release of plague would not cause a massive epidemic akin the 14th century "Black Death" scourge that killed tens of millions, a 50kilogram release of pneumonic plague over a large city could infect 150,000, causing 36,000 fatalities .

Ricin

is a stable toxin easily made from the mash that remains after processing Castor beans for oil. Castor beans are grown agriculturally worldwide and the plants grow wildly in arid parts of the United States. Castor beans are slightly larger than pinto beans and have been described as looking like blood-engorged ticks. The beans are not normally used as food.

Poisoning can occur following inhalation, ingestion, or injection of ricin toxin from castor beans.

Deadly in less than milligram amounts

• Moderately toxic by inhalation

• Relatively not toxic orally

• Somewhat difficult to formulate as powder

• Quite stable

• Dose-dependant morbidity

• Castor beans widely available and popular

• Weaponization attempted by US, USSR and Iraq

No Known Treatment Available – Supportive Care only

Smallpox (

Variola major

)

• More historical deaths than plague and all wars combined

• In some ancient cultures, naming infants forbidden prior to smallpox survival

• 18th century, smallpox killed every 10th child born in Sweden and France, every

7th child in Russia

• 1949 - Last U.S. case

1977 Last natural case

Highly contagious

(not

‘extremely’)

• Quite stable

• ca. 30% mortality

Virus not widely available

Weaponized by the USSR

• Susceptible population

• No animal reservoir

What About Engineered Pathogens

“My most successful research was the finding that a bacteria called Legionella could be modified in such a way that it could induce severe nervous system disease . And the symptoms of nervous disorders [similar to those of multiple sclerosis ] would appear several days after the bacterial disease was completely "cured." So there would be no bacterial agent, but symptoms -- new and unusual symptoms -- would appear several days later

”.

NOVA interview with former Soviet biowarrior

Sergei Popov

The Biological Threat has Evolved

Cold

War

Gulf War

Dissolution of USSR

Today… and Tomorrow??

Tactical use on battlefield

….and strategic use against mainland U.S.

“Terrorist” use against military, population centers, and economic/agricultural infrastructure

Geopolitical “Asymmetry has changed the face of the game. The

U.S. has few or no “near-peers” for conventional forces

Courtesy David Franz

Diseases often mentioned in the context of Biological Warfare

Human Diseases

Smallpox

• Cholera

• Shigellosis

Toxins

• Botulism

• SEB

• Ricin

Zoonoses

Anthrax

Brucellosis

Melioidosis

Glanders

• Coccioidomycosis • Plague

VEE/EEE/WEE

Psittacosis

Marburg/Ebola

• Histoplasmosis

Rift Valley fever

Q fever

• Tularemia

Lassa fever

Animal Diseases

• African Swine

Fever

** Foot &

Mouth

• Fowl plague

• Newcastle

• Rinderpest

Plant Diseases

• Wheat Stem Rust

• Rice Blast

• Pathogenic Plant Fungi

• Karnal Bunt

Courtesy David Franz

“CDC List”

Category A

• Anthrax

• Plague

Smallpox

Tularemia

Viral Hemorrhagic

Fevers

Marburg

Ebola

Lassa

Machupo

High Priority http://www.bt.cdc.gov/agent/agentlist.asp

Category B Category C

• Brucellosis

• Epsilon Toxin (C. Perfringens)

Food and water safety threats

Salmonella, E. coli O157:H7, Shigella, Vibrio,

Cryptosporidium

Glanders

Meliodosis

• Emerging diseases

• Nipah

Hantavirus

Yellow Fever

Drug resist TB

• etc

• Psittacosis

• Q Fever

• Ricin

SEB

Categorizations based on various factors that affect potential as weapons

Typhus

Viral encephalitities ( VEE/EEE/WEE)

Lower Priority

“OIE List A” Animal Diseases

Transmissible diseases with potential for serious and rapid spread that are of serious socio-economic or public health consequence and major importance in international trade of animals and animal products.

Foot and Mouth Disease

• Rinderpest

Pest des petis ruminants

Hog Cholera

African Swine Fever

Swine Vesicular Disease

Vesicular Exanthema

African Horse Sickness

Exotic Newcastles

Avian Influenza (HPIA)

Sheep and Goat Pox

Lumpy Skin Disease

Rift Valley Fever

Vesicular Stomatitis

“Category A” agents

Pose a

significant risk to national security

because:

• easily transmitted from person to person

• high mortality

• require special efforts to ensure preparedness

80% of “Category A” agents are zoonotic

The Risk is Agent,

Target, and Delivery

Dependent

Prevention

The Silent Enemy

BW Attack

Incubation Period

Clinical Signs

Mass Casualties

Impact

The longer a BW attack goes undetected or unrecognized, the more serious it becomes.

Early detection and effective intervention is critical

Emerging or Intentional Disease Event

Dick and Jane from Kansas City just returned from travel in the

UK and introduced Foot and

Mouth Disease into the massive food animal economy of the

United States.

Was this an innocent mistake?

Or were they Terrorists intent on damaging the U.S?

Why Agricultural Targets ??

Its not about killing cows!!

An economic assault on our national security and infrastructure

The Great Engine of Our Prosperity

…Our ability to produce safe, plentiful, and inexpensive food creates the discretionary spending that drives the American standard of living….

Dr. Jon Wefald

President KSU

Homeland Security

Presidential Directive #9

30 Jan 04

…..a successful attack on the United States agriculture and food system could have catastrophic health and economic effects .

The U.S. will protect the agriculture and food system from terrorist attack, major disasters, and other emergencies by:

• Identifying and prioritizing sector-critical infrastructure and key resources for establishing protection requirements

Developing awareness and early warning capabilities to recognize threats

Mitigating vulnerabilities at critical production and processing nodes

Enhancing screening procedures for domestic and imported products

• Enhancing response and recovery procedures

NRC Report to the USDA on

Vulnerability of U.S. Agriculture,

20 Sept 2002

"Biological agents that could be used to harm crops or livestock are widely available and pose a major threat to U.S. agriculture."

Harley Moon, co-author

Both primary authors of the report said a biological attack on U.S. agriculture was a matter of

when - not if

.”

Agroterrorism Threats / Agents?

Foot and Mouth

Disease (FMD)

Mad Cow Disease

(BSE)

Highly contagious virus (days)

Aerosol transmission & fomites

Not zoonotic

Widely available

Cause epidemic

Mass depopulations

Significant economic impact

Require no delivery system

Slow-acting prion (years)

Infected tissues in food

Zoonotic (vCJD)

Rare – hard to find

Isolated cases or clusters

Limited depopulations

Significant economic impact

Require thoughtful delivery

#1 Agroterrorism threat Improbable terrorism threat

Dairy

Regional concentration magnifies vulnerabilities and potential consequences.

Beef Swine

Poultry Corn Wheat http://www.nass.usda.gov/census/census97/atlas97/

Potential Impacts of Foreign Animal Disease on Industry

• Productivity losses

Decreases in market prices

Value of animals destroyed

Vaccination costs

Carcass disposal costs

• Cleanup and disinfection costs

• Profit losses

Direct Impacts

Council for Agricultural Science and Technology,

Number 28, Feb 2005

Potential Impacts of Foreign Animal Disease on Industry

Loss of exports and foreign demand

Loss of domestic sales / demand

Loss of competitive position domestic/export markets

Costs to rebuild production capabilities

Indirect Impacts

Decreased demand for services

(processing / marketing / etc.

Emotional / psychological trauma

Council for Agricultural Science and Technology,

Number 28, Feb 2005

“Prior to September 11, 2001, all known victims of criminal use of biological agents in the U.S. were exposed by the oral route - with food as the vehicle”

David Huxsoll, DVM, Ph.D.

KVMA, Jan 02

In the 1980’s, the Rajneeshee cult contaminated salad bars with

Salmonella typhimurium in an effort to influence a local election in Oregon

• 751 known cases of GI disease

• a more virulent strain (S. typhi could have caused many deaths

Informant cracked the case!!

Ingrid Newkirk, PETA

President and Co-founder

"If that hideousness (FMD) came here, it wouldn't be any more hideous for the animals

— they are all bound for a ghastly death anyway. But it would wake up consumers.

I openly hope that it comes here.

It will bring economic harm only for those who profit from giving people heart attacks and giving animals a concentration camplike existence. It would be good for animals, good for human health and good for the environment .“

ABCnews.com 4/2/2001

“If vivisectors were routinely being killed , I think it would give other vivisectors pause in what they were doing in their lives… Call it political assassination or what have you…”

“ I don't think you'd have to kill too many [researchers].

I think for five lives,

10 lives, 15 human lives, we could save a million, 2 million, 10 million non-human lives.”

Jerry Vlasak, MD, Physicians Committee for

Responsible Medicine (PCRM) spokesman at an animal rights convention

The Observer, July 25, 2004 (UK)

“Would I advocate taking 5 guilty vivisector’s lives to save 100’s of millions of innocent animal lives? Yes

I would.”

Development and testing of biodefense and emerging disease countermeasures rely heavily on animal-based research

Texas Tech professor found not guilty of smuggling plague samples, but guilty of fraud and improper shipping

John Dudley Miller

Physician

Respected researcher

Family man

Convicted felon

Terrorist?

Scapegoat?

60 FBI agents on campus

• Lost his job and his medical license.

• 24 months in prison.

• Fined $15K & $38K restitution.

Oh waiter, there seems to be a rock (python) in my soup!

At least

11,600 tons of illegal bush meat

, including monkey, rat, bat, gorilla, camel and elephant, were smuggled into Britain during 2003, exposing cattle to a range of infectious diseases, including foot and mouth. The extent of the illegal trade in meat from Africa, Asia and the Middle East is revealed in an internal government report ( Department of the Environment, Food and Rural Affairs UK) , which says that the problem is far worse than had been thought. Almost all of the meat, which is bound for street markets and ethnic restaurants, is hidden in passengers' suitcases and goes undetected by airport security.

The food includes snake and antelope meat, frogs' legs, snails, and cows‘ nostrils, as well as meat from endangered species such as chimpanzees, antelopes and elephants.

The Telegraph

5 Sept 04

How are we going to counter these new and ominous threats to our national security, our people, or our economic infrastructure

We must Improve and Refine Traditional Countermeasures to potential emerging

Public Health Threats

Intelligence / Surveillance / Catch the Bad Guys!!

Vaccines, Prophylaxis, Treatments

Disease Surveillance

Genetic enhancement of resistance

Rapid diagnostic capabilities

Rapid - Incident Response

Consequence Management

Enhance Surge Capacity

Training

Increase Bio-security Profile

Virtually all are dependent upon

$$, facilities and personnel

Innate Immunity Ramp-up

Government

Federal

State

Local

Basic and

Applied R&D

Industry Academia

A coordinated and collaborative partnership is critical

before after

Vaccines

Prophylaxis

• Treatments

Enhanced resistance

Proactive Measures

Intelligence

Risk Assessment

• Surveilance

Regulatory Safeguards

Coordination / Training

Biosecurity

• Response & Preparation

Biological Threat

Countermeasures

Attack

• Incident

Management

• Consequence

Management

• Containment

Decontamination

• Disposal

Indemification

Reactive Measures

Big $$

Bigger

$$

The overall risk of some kind of bioterrorist event in the U.S. in the future is probably high

However…..

Individual Risk is Extremely Low

“When you hear hoof beats, don’t look for Zebras”

We need to at least be thinking about the

“zebras” when it comes to surveillance, diagnostics, and response

Potential Consequences of Agroterrorism are High.

Agriculture generates 17% of U.S. GDP & 13% of U.S. jobs

Livestock and cropping systems are interdependent - e.g., an attack on either beef or corn affects the other

Failures would cause widespread international disruption

Foot and mouth disease in the UK cost an estimated

$5B to agriculture alone. Tourism losses wre an additional $7.2B - $8.5B. http://www.defra.gov.uk

http://www.whale.to/m/fmd70.html

Doesn’t have to be intentional to be serious!

West Nile

• Nipah Disease

• Prion Diseases

• Avian Influenza

Exotic Newcastles

SARS

• Marburg / Ebola

• Etc, etc, etc…

The Good News

Heightened Awareness

Accelerated / Applied Research

New Facilities

Rapid Diagnostics

First Response capabilities

• Countermeasures (vaccines, treatments, containment strategies)

Pre-positioned materials/teams (vaccines, treatments, PPE)

Better Planning, Coordination, Communication and Training

Improved Intelligence, Security and Surveillance

Reinvigorating Public Health Infrastructure

Government Reorganization (Homeland Defense Dept)

The Bad News

“After successful prevention, the next line of defense is the development of new vaccines and antidotes for bioterror

The Defense Science Board estimates that we have only a few of the dozens of antidotes or vaccines needed to counter the top bioterror threats”

Christian Science Monitor

11 Feb 2003

Agriculture Seduced by our Successes

• The U.S. has been highly successful in preventing the natural or accidental introduction of many dangerous agricultural diseases for generations

Foot and Mouth Disease

• Rinderpest

• African Swine Fever

Containment and response strategies for those diseases that do occasionally occur have been effective - but costly

Avian Influenza

Exotic Newcastle disease

VEE

Classical Swine Fever (Hog Cholera)

Historical accomplishments can promote complacency and a sense of invulnerability in the face of new potential threats

Cautious Optimism??

The dual threat of emerging and intentionally inflicted disease is frightening, but there is “cause for some cautious optimism.” Scientists have an “ evergrowing toolbox of sophisticated technologies and strategies at their disposal that will help detect, prevent, treat, and respond to new and old infectious agents as they emerge, whether by an act of nature or by deliberate design.”

“… powerful new tools, including ones that expose the genetic signature of microbes

, are being used to detect and identify known and novel pathogens and to develop new drugs and vaccines.”

Forensics &

Countermeasures

Anthony Faucci MD, NIAID/NIH

Emerging Infectious Diseases/

A Clear and Present Danger to

Humanity,

JAMA. 2004;292:1887-1888.

"For the life of me, I cannot understand why the terrorists have not attacked our food supply, because it is so easy to do”

Resignation comments - Tommy Thompson,

Secretary of Health and Human Services

December 3, 2004

The Daunting Challenges

Endemic Infectious Disease

Emerging Infectious Disease

Exotic / Foreign Disease

Prion Disease

Food Safety

Human

Animal

Plant

Download