Showing posts with label Foot & Mouth disease. Show all posts
Showing posts with label Foot & Mouth disease. Show all posts

December 29, 2013

Foot & Mouth disease in New Zealand - complacency over risks


By Dr Clive Dalton

Up to the 1980s, MAF had an army of Livestock Officers working from every town office testing cattle for Tb and Brucellosis. They were our watchdogs for anything abnormal that they saw on farms, which could have been the first signs of exotic disease like foot and mouth.

MAF also had full-time veterinarians in the district offices to supervise the Livestock Officers’ work, and backed by our MAF admin staff, we held regular on-farm exercises to respond to an exotic disease incident. 

We practised total lockdown of animals, people, pets and vehicles – all with police backing. We were never popular, which I knew well being involved with the media liaison.  After an exercise we had detailed debriefings by all involved, which were scary, but at least we learned what we could be in for.

But all this went down the bureaucratic offal hole with the spawning of State Owned Enterprises in the late 1990s, which had to make a profit for government shareholders – the public. 

Private veterinarians were given a greater role in disease surveillance for government, and a 0800 number was provided if you saw any slobbering or lame animals.  The trouble with this was that vets didn’t have the same coverage or right to walk on to farms which the MAF livestock officers had, as acting like a policeman wasn’t good for their future client relations or business.

So self-regulation claimed the day, and recent examples of its success don’t bear listing. The scary feature of recent events has been the delay seen in action, and poor communication between the major bureaucracies. Delays of weeks and even months between tests and actions have been the norm. 

With a virus like Foot and Mouth (FMD) spreading blowing on the wind, delay and a good westerly wind could see all farm animals infected between Raglan and Te Aroha (or even further afield) in a few days.  Birds and vermin would add their unwelcome and uncontrollable contribution to this spread, as animal carcases would be a great food source for them.

FMD is now an increasing possibility with increased tourism (and the risk of people smuggling ethnic food), larger ships carrying more containers and more pressure at ports, more yachts arriving at exotic bays and islands, and Palm Kernal Expeller (PKE) with freeloaders coming from Asia where FMD is endemic.

And then there are pigs.  Who would know where all the backyard and wild pigs are in New Zealand?  Sadly Ministry of Primary Industry (MPI) would never be able to find out, and few of these pigs would ever see a veterinarian or a meat inspector, allowing pigs and their meat ending up anywhere before an exotic disease was officially diagnosed and restrictions brought in.

What’s more, who is ensuring that all garbage including meat is cooked to the required 100°C for at least an hour according to the law? Registered commercial pig farmers are no problem, as they don’t tend to feed garbage, it’s the backyard piggeries that are the problem.

MAF Livestock Officers always had good local contacts to locate non-registered pig keepers, and pub talk after a day’s TB testing (with the MAF car parked out of sight) was an invaluable tool to know what was going on in the pig world.

Pigs fed uncooked garbage are a guaranteed source of FMD as they are the great incubators and spreaders of the virus, unlike cattle, sheep and deer. 

When (and not if) we get FMD, it’s highly likely to be an Asian strain and our European customers (where they vaccinate as FMD is endemic) wouldn’t want this risk. So they’ll use this as a great opportunity to delay restarting trade, simply by refusing to accept our renewed disease free status.  They’ll just keep on demanding more time and more documentation – easily for years.  It could end up like apples to Australia – taking decades.

The size of a clean up, even if we use vaccination and lose New Zealand’s disease free status, would be massive.  Finding people, coal, railway sleepers and machinery to burn and bury just Waikato’s one million dairy cows would be frightening. Imagine having an outbreak which could spread through the whole of the North Island?  The environmental impact on ground water of having all these buried carcasses doesn’t bear thinking about.

In the last UK outbreak there were 60 new outbreaks each day, and by the time the teams could get cows burned or buried, they’d blown up to twice their size to make the job even harder.  This handling can further spread the virus, as can veterinarians who have to stand down after a few days work.  Dead stock have to be moved in totally sealed trucks – so hopefully MPI have a fleet of those parked somewhere.

The other area of great concern to farmers is the practice of slaughtering healthy animals well ahead of the spread to form a buffer zone.  This is based on sophisticated computer predictions, which the last UK outbreak showed had a large margin of error. Despite the fact farmers were paid full value for their animals, it was still a very upsetting experience for those involved.

Assuming that a clean up would eventually come to an end, at a cost to the economy that nobody dare predict, the really big concern is where would be get enough female genetics to restock our farms? 

LIC is well stocked with quarantined bull semen, but they don’t have a contingency plan as far as I can see to provide females to put semen into.  Neither is there a stockpile of frozen ovaries and embryos for any of our top farm livestock.  A few wise beef and sheep stud breeders have made small provisions of semen and ovaries from their top animals, but they could never provide enough for a national crisis.

It’s very hard to find people to discuss this question with, assuming presumably that the worst will never happen.  One minute organisations involved with our farm livestock are skiting about having the best genetics in the world, and then apparently assume that when millions of them go up in smoke or into large holes, females with the same genetic merit will mysteriously appear out of thin air to be mated and carry on where we left off!

I’m not holding my breath for any farming organisation volunteering to start a National Gene Bank to save our farm livestock, the nation’s farmers and the economy, as CEOs will rightly argue that it’s not their organisations’ core business.  

The need cries out for government leadership and investment.  But who would listen?  An old MAF mate and I have chewed plenty of ears over the last 40 years and failed.  We could make a good start with the $40million of government money promised for the next America’s cup attempt!

It’s only when you’ve lived through a FMD outbreak and remember the loss of valuable farm and companion animals, the resulting human devastation and suicides, the stink of burning flesh, enormous holes being filled by convoys of trucks, roads clogged by rubber neckers and the silence in the countryside, that you realise how ill prepared we are to face a FMD nightmare.


Foot & Mouth disease in New Zealand - are we ready?


By Dr Clive Dalton

The 2013 Auditor General’s report clearly shows we are not ready for an outbreak of FMD.  The regular sporadic outbreaks in Asia and Japan are not far away.  Response from the Ministry of Primary Industry (MPI) recognises that we may have problems dealing with an outbreak, but our borders are secure enough to prevent such an event happening.  Yeagh Right!

When Mr Carter (now speaker) led the MPI, he assured us that New Zealand’s biosecurity defenses ‘were the best in the world’. Perhaps they are, but when so many countries (including UK) don’t have a recognisable biosecurity system at all, it wouldn’t be hard to be best.  Better to compare us with Australia that has avoided the nasties that landed here in recent years.

The worry I and my former Whatawhata Research Station colleague Dr Doug Lang have had for 40+ years now, is where would we get replacement stock from when (and not if) we get FMD? 

Have we got our top genetics on ice for the nightmare scenario, when for example, the westerly wind blows the FMD virus from Raglan to Te Aroha and then into the central plateau in only a few days?  The answer is a monumental NO!

Doug and I were involved in setting up the Lands & Survey Romney and Angus breeding schemes on settlement blocks around Taupo in the 1970s, and we always thought that as they were paid for by taxpayers’ money, they should have been the source of a national ‘gene bank’ for an inevitable crisis.  It would have been so easy to take semen from the top males, and ovaries from the old top females that had stood the test of time, and throw them in the freezer as a very low-cost insurance scheme.

But nobody was interested, and now it’s SOE, Landcorp who have joined their genetic resources with commercial company Rissington, they don’t see protecting the country’s sheep and cattle genetic resources as their commercial responsibility. Fair enough.  There’s plenty of dairy semen on ice at LIC but few female resources that could restock the country.

Where would we get replacement sheep and cattle females from – the outback of Australia? And are we happy about having to go back 60 years to start genetic improvement all over again?

This is where the Rare Breeds NewZ is a good resource in their role of preserving minority breed genetics. We are the best country in the world to store animal genetic resources due to our freedom from the world’s nastiest diseases.  But can you imagine trying to get this simple fact through to today’s politicians with a Minister of Agriculture well down the cabinet pecking order, so resources could be allocated for it?

Doug Lang and I gave up our struggle, especially when we got the message from our then MAF Director of Animal Health, not to worry as – ‘Systems were in place’!  When you get that reassurance from a government bureaucrat – be very afraid and head for the hills.

In the last FMD outbreak in UK, there were 60 new cases every day, and it could take a team of 10-15 people over a week to slaughter, burn or bury the stock off one farm.  We simply haven’t got the people to cope with this. The accumulation of dead stock on farms adds to the spread of the disease, as do moving vets as they inhale and carry the virus from farm to farm and have to be stood down after a limited period.

I’ve recently learned about the ‘New Zealand National Biosecurity Capability Network’ (NBCN) and what it’s going to do when the proverbial hits the fan.  Who dreams up these bureaucrat titles? It’s based on a ‘strategic policy’ between AsureQuality and Ministry of Primary Industry (MPI).

I talked to a ‘Capability Relationship Co-ordinator, Biosecurity Services’ in AssureQuality in Hamilton.  He told me how they have been working for the last two years to get ‘willing organisations’ to form agreements with AsureQuality to provide what would be needed in a crisis. These would be things like people (the real biggie), earth moving companies, police, regional and district councils, etc etc. What happens if organisations are not ‘willing’ I wondered?

It was stressed to me that this was a massive job and won’t be finished for another two years.  So what do we do in the meantime if FMD arrives in the Waikato with a load of Palm Kernel from Indonesia next week?  Will all these stakeholders and bureaucrats have things agreed?

In the meantime, if you wake up at night in a sweat, imagining all your animals on a massive great stinking funeral pyre or going into a great hole in the ground dug on your farm – just remember that ‘systems are in place’ so you can rest in peace. I wish!

In the meantime it would pay to read up about FMD on the MPI website and what everyone’s role will be (both rural and urban) in a crisis that one day will arrive unless we really have the best biosecurity systems in the world. Currently the Auditor General doesn’t think we have.