- PowerPoint PPT Presentation

1 / 26
About This Presentation
Title:

Description:

A source of danger to the stock of this country The Pirbright laboratoryand the history of foot and – PowerPoint PPT presentation

Number of Views:34
Avg rating:3.0/5.0
Slides: 27
Provided by: drabiga
Category:
Tags: n4g

less

Transcript and Presenter's Notes

Title:


1
A source of danger to the stock of this
country The Pirbright laboratory and the
history of foot and mouth disease research in
Britain
  • Dr Abigail Woods
  • Centre for the History of Science, Technology and
    Medicine
  • Imperial College London

2
FMD, 2007
  • 8 outbreaks in Surrey, August-September

3
  • Origins the Pirbright site

4
  • Defective drains contractors vehicles blamed
  • Criticism of Defras dual role as regulator and
    customer

5
  • Led to media questioning of the risks and
    benefits of work at Pirbright
  • Vaccines may prevent an epidemic.
  • They may also have caused this outbreak
    (Economist 9/8/07)
  • How safe is biosafe? (Telegraph, 14/8/07)
  • Science proved to be a threat as well as a
    protection (Guardian, 13/0/07)

6
Whats new?
  • This risk / benefit discourse has a long history.
  • Since the 19th century, fears about virus escape
    have structured attitudes to and the practice of
    FMD research in Britain.
  • FMD escaped before, in 1960.
  • What lessons can history provide?

7
Origins
  • 1839 FMD appeared in Britain, became endemic.
  • 1869 / 1878 acts passed to control it.
  • 1878-1883 experiments at the Brown Institution
    and the RVC, sponsored by Royal Agricultural
    Society

8
Interest fades
  • 1886 endemic FMD eliminated only occasional
    invasions for the next 25 yrs.
  • No further research
  • Vets not interested job done!
  • But many advances in Germany and France

9
The 1910s
  • 1911 25 outbreaks
  • Worst situation for 25 yrs
  • Committee appointed to enquire
  • Witnesses asked about research extremely
    cautious
  • Committee recommends research abroad.

10
  • 1914 Research committee heads to India, no
    progress
  • 1920 Departmental Committee directs work by JA
    Arkwright on HMS Dahlia no progress

11
Epidemics, 1922-24
  • 2 devastating epidemics
  • 7 months / 9 months
  • 1,140 / 2,691 outbreaks
  • 56,000 / 300,000 culls
  • Cheshire particularly hard hit

12
The battle for research
  • Mounting criticisms of the slaughter policy
  • Calls for research into an alternative control
    method
  • Campaign led by members of the medical profession

13
  • Stockman furious!
  • Argued that research was
  • Dangerous
  • virus might escape from lab
  • Harmful to trade
  • threatened Britains FMD-free status
  • Irrelevant
  • already know how to control FMD
  • experiments are going on before our eyes, in
    nature.

14
  • Stockman was overruled.
  • Minister of Agriculture appointed the FMD
    Research Committee (FMDRC), 2/24.
  • Research began at various sites.
  • Pirbright field station opened 1925.

15
FMD research the early years
  • Stockman lost the battlebut his (MAFs) views of
    research shaped the way it was pursued.
  • No independent FMD research allowed
  • MAF to oversee the FMDRC
  • All research (from 1933) at Pirbright
  • MAF vet stationed at Pirbright to monitor
    biosecurity

16
Disease security at Pirbright
  • Ongoing upgrading of facilities, including
  • Enclosed animal accommodation, bathing, lab,
    hostel for workers (1927)
  • Laundry (1930s)

17
  • Isolation unit (c1950, 1970, 1998)

18
  • Sewage / effluent treatment plant (mid-1950s).
  • Air filtration (c1960)

19
Breaches
  • Much accidental (mechanical) transfer of virus
    within the compound
  • 1946 and 1958 outbreaks within 3 miles of
    Pirbright.
  • 1958 internal leaks raises awareness of aerosol
    route.
  • 1960 2 internal leaks 1 external leak

20
  • 1960 escape to infect farm near Guildford
  • Cover-up considered and rejected.
  • Press comment, not criticism

21
  • Who was responsible?
  • MAFs close control had slipped in previous
    decade
  • ARC in charge from 51 (though CVO still on
    governing body)
  • MAF vet withdrawn 53.
  • Significant expansion of Institute
  • Claimed governing body / ARC responsible. ARC
    denied
  • Ultimately agreed
  • ARC responsible for internal leaks
  • MAFF responsible for external leaks

22
  • Internal investigation
  • Couldnt discover route
  • In view of the many hazards and the high
    infective power of the virus, it will never be
    possible to guarantee absolute security at all
    times
  • 2 firms of auctioneers sued (unsuccessfully) for
    damages

23
  • Action
  • Biosecurity improved (though internal virus leaks
    in 67 and 70)
  • Vaccine RD handed to industry, 1961.
  • Conditions of work shaped by biosecurity demands

24
Post-1960
  • Rothschild report (1971)
  • Funds shifted from ARC to MAFF
  • Customer-contractor principle of research
  • 1980s Pirbright threatened but survived.
    Control passed to AFRC (1984) and BBSRC (1993)
  • Wellcome sold out to Rhone Merieux (1990) which
    became Merial (1997)
  • Responsibility for biosecurity passed from MAFF
    to Defra (2001)

25
Lessons from history
  • Why the Pirbright facility exists
  • What Merial is doing there
  • Defras dual role as customer and regulator
  • The ongoing fight to contain the virus
  • And how that priority has shaped the governance
    and practice of research
  • How reactions to viral escape have changed

26
(No Transcript)
Write a Comment
User Comments (0)
About PowerShow.com