Intensive farming at heart of flu crisis

In modern disaster management theory, when any large system experiences a major shock or failure, you assess the risk, activate an ordered emergency response, and manage the after-effects. In the world of real people hit directly by the real shock, you look for someone to blame. For ordinary Mexicans this week, who faced the shutdown of their country by swine flu and an unknown number of deaths, it was a culprit that was needed. The source of the current epidemic was easy to identify in their eyes. Near the town of La Gloria, east of Mexico City, which appears to be the epicentre of the flu outbreak, is a giant industrial pig complex jointly owned by the world's largest pig processor, Smithfield Foods. Smithfield is adamant that the swine flu epidemic is not of its making and has no connection to its factory farms in Mexico or in any of the countries where it has established its powerful presence. By the end of the week, the company had, like a besieged banker, gone into shutdown mode and declined to give interviews, but it issued a statement: "We have found no evidence of the presence of influenza virus in any of our pig herds or any of our employees at any of our worldwide operations. All our herds are tested regularly for disease including influenza. We routinely administer flu vaccines to protect them and conduct monthly tests to examine the presence and identity of different flu strains." When a young boy from La Gloria who had been ill in March became the earliest confirmed case of the current swine flu outbreak, following new tests by the U.S. Centre for Disease Control (CDC) on previously cleared samples from Mexico, Smithfield said it too was re-examining its herds. It was confident that it could reassure people who have been "bombarded by unfounded opinions, non-scientific statements and unrestrained internet rumour and speculation" that it was not the source. It declined to answer detailed press questions on its tests.Like the rest of the world watching a potential pandemic unfold as though in a slow-motion car crash, Smithfield could do little but wait to see how hard or soft the landing would be. Smithfield's predicament has not been helped by the fact that it has made itself somewhat conspicuous with its habits. It operates on a grand scale. The volume of its pig waste is extravagant. But just as one bank did not alone cause the financial crisis but merely conformed to the latest banking type, so it is the very nature of today's globalised meat industry that is at the heart of this swine flu pandemic. The factory unit near La Gloria fattens nearly a million pigs a year. Globally Smithfield slaughtered 26 million pigs in 2006, generating sales of $11.4bn and profits of $421m. It already controls over a quarter of the total U.S. processed pork market and it has expanded by acquisition in Europe. Like the banking sector, the global food system has seen the emergence of unprecedentedly large players that are dominant at every stage of production from pig breeding to bacon slicing. The modern food system has a sophistication and global interdependence to match the financial system, too. It looks too big to fail. But like that sector, it is also extraordinarily fragile and vulnerable to shock. Many of the shocks are likely to be of its own making. Smithfield's intensive factories of densely packed hogs, like those of the rest of the large-scale industry, produce vast lagoons of foul-smelling discharges. In many of the areas where it has sited its factory farms or slaughtering and processing complexes, activists and locals have campaigned against it, accusing it of environmental pollution, labour rights abuses and in some places operating without proper permits. The people of La Gloria have had long run-ins with the company's nearby subsidiary Granjas Carroll. When 60 per cent of the town's population became ill in March with flu-like symptoms, they quickly blamed the pigs. Swine flu is currently being passed from human to human, and it is possible that this particular strain of swine flu was created without ever seeing a pig directly, as U.N.'s Food and Agriculture Organisation's (FAO) experts on animal health point out. The FAO has, however, dispatched a surveillance mission to help the Mexicans check their pig herds. But the focus on Smithfield is not surprising given its history. It won notoriety a decade ago when two of its US subsidiaries were given the largest ever environmental fines by the government's Environmental Protection Agency, having to pay $12.6m for illegally discharging pollutants from its operations in to the Pagan river in Virginia. It had committed more than 5,000 violations of permit levels for discharging faecal coli forms, phosphorus, ammonia, cyanide and oil from its pig factories over more than five years, destroying fish stocks and polluting water tables. Even more troublingly, it was also found guilty of falsifying documents and destroying records. And as expert labs continued their forensic work through the week, the ancestry of this latest strain of flu and its connection with modern intensive pig farming in general if not with any farm in particular was established. By Wednesday night the reason why scientists had pressed the full flu alert button even though only a few hundred cases outside Mexico, almost all mild at that point, had appeared, also became clearer. At CDC the head of virology had completed the genetic fingerprinting of the swine flu and was able to say that it has arisen from a strain first identified on industrial pig units in North Carolina in the late 1990s. It is no coincidence that this threat to global human health should have emerged from that particular state, as Michael Greger, director of public health at the U.S. Humane Society and leading author on the history of bird and animal flu explains: "North Carolina has the densest pig population in North America and boasts more than twice as many corporate swine mega-factories as any other state. With massive concentrations of farm animals within which to mutate, these new swine flu viruses in North America seem to be on an evolutionary fast track, jumping and reassorting between species at an unprecedented rate." Novel human disease is the toxic debt of today's industrial livestock farming. The influenza virus has eight genetic segments. If two different types of flu infect the same cell at the same time, the genes from both viruses mix, swapping segments to form totally new hybrids. In Mexico as in many poorer countries, industrial pig and poultry farms are increasingly sited close to crowded urban populations, making simultaneous infection by different flu strains more likely. The 1918 flu pandemic was an H1N1 strain and was a kind of bird flu new to humans so they had no immunity to it. It killed at least 50 million people as it raged around the world in less than a year. The 1918 H1N1 strain passed from humans to pigs, and became the dominant form of flu among pigs, albeit one that evolved into a fairly mild strain. But then in 1998 there was an explosive new outbreak of swine flu in a factory farm in North Carolina that made thousands of pigs ill. The virus had evolved into a triple hybrid that had never been seen before, containing gene segments from bird, human and swine flu. It had found the ideal breeding ground. Pigs, whose immune systems were suppressed by the stress of crowding and fast feeding, and kept confined indoors, were perfect disease incubators for flu whose preferred method of transmission is virus-infected aerosol droplets, expelled by the million in the hog's famous barking cough. Thanks to the modern practice of transporting live animals, the new virus spread rapidly through pig herds around the country. Six of the eight genetic segments of today's swine flu outbreak isolated by CDC experts can be traced back to the triple hybrid from North Carolina. Factory animal farming has developed as a giant ecological credit bubble. It has delivered enormous growth in global meat production over the last three decades. Consumers have happily bought its cheap products just as they gobbled up the freely-offered loans of the financial boom without asking too closely how such consumption could be sustained or what the eventual consequences might be. Swine flu should make us question that complacency. Jan Slingenbergh, a senior animal health officer at the FAO believes the precise final evolution of the current virus may never be found. "We don't know, but what is most likely is that a human was infected by a common flu virus and at the same time with a second virus which had elements probably from pigs and they mixed to form a new virus. The last bit of human mixing probably took place around mid-March in Mexico." Slingenbergh is sceptical that a link will be found to the Granjas Carroll factory. The current virus may now progress as a mild strain and die down or it may mutate and evolve further to become more virulent. The reason experts have invested so much effort in preparing for a flu pandemic and are taking this one so seriously, is that these rapidly evolving strains that mix bird, pig and human forms could throw up a particularly deadly variety. — © Guardian Newspapers Limited, 2009

The Hindu, 4th May 2009