Showing posts with label Virus. Show all posts
Showing posts with label Virus. Show all posts

Wildlife Diseases

Pandemics Ahead: Number 8 in a series looking at the link between animal protein and global health disasters.

Excerpt from Meat Climate Change: The 2nd Leading Cause of Global Warming by Moses Seenarine, (2016). Xpyr Press, 348 pages. ISBN: 0692641157. http://amzn.to/2yn7XrC

One aspect of the livestock-wildlife interface is zoonotic disease, which is a disease that can be passed between animals and humans. Disease is largely an environmental issue. Around 60% of emerging infectious diseases that affect humans are zoonotic, and over two-thirds of those originate in wildlife. For instance, AIDS, Ebola, West Nile, SARS, Lyme disease and hundreds more.(883) 

Many zoonotic diseases have a wildlife reservoir that acts as an impediment to eradication in domesticated populations. For example, rabies, bovine tuberculosis, paratuberculosis, brucellosis, avian flu, and cattle fever tick.(884) Bovine tuberculosis is due to Mycobacterium bovis, a worldwide zoonotic disease carried by cattle and ingested by humans via milk and carcass. M. bovis has infected wildlife as well, including cervids in North America, badgers in the UK, possums in New Zealand, buffalo in South Africa, and feral pigs in Europe.(885) 

In Malaysia, pigs are exposed to fruit bats infected with Nipah virus. The virus can rapidly spread through the country’s pig population, certainly through trade and possibly between farms by dogs and cats. Humans in direct contact with pigs can then acquire the infection and its often-fatal encephalitis.(886)

Wildlife can also serve as vectors for nonzoonotic diseases of food animals. The problem is exacerbated by how livestock are kept in poor countries, which can magnify diseases borne by wild animals. Over two million people a year are killed by diseases that spread to humans from wild and domestic animals.(887)

Domesticates are inadvertently leading to extinction of wildlife. A pneumonia outbreak in 2010 killed 65 of the critically endangered markhor goat in Tajikistan, as much as 20 percent of the remaining population. The markhors contracted the disease for domestic goats.(888)

Chapter 23: 6TH MASS EXTINCTION, pg 228.
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For more information, see MeatClimateChange.org

Press News 062420

Our article, "Lucky Streaks Don't Last: Livestock Disease and Human Health" was posted on the American Sociological Association's Section on Animals Blog on June 8, 2020

https://www.asanet.org/asa-communities/sections/sites/animals-and-society/blog#luckysteaksdontlast 

Our "Regs to Nowhere" article was posted on the American Sociological Association's Section on Animals Blog on Covid-19 on June 8, 2020

https://www.asanet.org/asa-communities/sections/sites/animals-and-society/covid-19#regstonowhere 

Chicken Diseases

Pandemics Ahead: Number 5 in a series looking at the link between animal protein and global health disasters.

Excerpt from Meat Climate Change: The 2nd Leading Cause of Global Warming by Moses Seenarine, (2016). Xpyr Press, 348 pages ISBN: 0692641157) http://amzn.to/2yn7XrC

In the UK, up to 19 million broiler chickens die in their sheds each year from heart failure. In the case of no ventilation due to a power failure during a heat wave, upwards of 20,000 chickens can die in a short period of time.(998) Chickens are susceptible to several parasites, like lice, mites, ticks, fleas, and intestinal worms, as well as other diseases.(999)

In epizoology, an epizootic is a disease that appears as new cases in a given animal population, during a given period, at a rate that substantially exceeds what is "expected" based on recent experience. That is, an epizootic represents a sharp elevation in the incidence rate. In contrast to an epizootic, common diseases that occur at a constant but relatively high rate in the population are said to be "enzootic,” like influenza virus in some bird populations. An epidemic is the analogous term applied to human populations. High population density is a major contributing factor to epizootics and vast amounts of antibiotics are used to keep diseases at bay in CAFOs (concentrated animal feeding operation), with varying success.

These are dozens of common diseases that affect chickens, including (i) Avian influenza or bird flu, a virus; (ii) Histomoniasis or Blackhead disease, a protozoal parasite; and (iii) Botulism, a toxin. There is also (iv) Campylobacteriosis caused by tissue injury in the gut; (v) Coccidiosis, a parasite; (vi) Dermanyssus gallinae or red mite, a parasite; (vii) Erysipelas, a bacteria; and (viii) Fatty Liver Hemorrhagic Syndrome caused by high-energy food.

Besides, there is (ix) Fowl Cholera; (x) Fowl pox; (xi) Fowl Typhoid; (xii) Infectious Bronchitis, a virus; (xiii) Infectious Coryza, a bacteria; and (xiv) Necrotic Enteritis, a bacteria. In addition, there is (xv) Peritonitis caused by infection in abdomen from egg yolk; (xvi) Prolapse; (xvii) Pullorum or Salmonella, a bacteria; (xviii) Squamous cell carcinoma, cancer; (xix) Toxoplasmosis, protozoal parasite; (xx) Ulcerative Enteritis, a bacteria; and numerous others.

Diseases are critical to each individual food animal's health, as well as the industry overall because they often affect an animal's efficiency at converting feed to protein. These diseases can severely affect an animal's diet and efficiency. They can infect wild populations or jump the species barrier and infect humans and other nonhuman animals. Infections may lead to medical intervention, loss of the bird, and/or spread of disease, which proliferates GHG (greenhouse gas) pollution.

Chapter 27: PANZOOTIC, page 258.     Previous  |  Home  |  Next

For more information, see MeatClimateChange.org

Regs to Nowhere

Pandemics Ahead: Number 1 in a series looking at the link between animal protein and global health disasters.

Excerpt from Meat Climate Change: The 2nd Leading Cause of Global Warming by Moses Seenarine, (2016). Xpyr Press, 348 pages ISBN: 0692641157) http://amzn.to/2yn7XrC

In 1906, Upton Sinclair's seminal book, The Jungle, first brought the shocking details of the animal industry to the forefront of US national attention. A national outcry prompted President Theodore Roosevelt to task the USDA with the inspection of animal carcasses and slaughterhouses.(988) When Congress first addressed food safety issues, it concentrated on the meat processing industry with the Meat Inspection Act of 1906 that required meat processing to be continuously inspected. The US food processing sector is now extensively regulated by state and federal agencies.

The FDA Food Safety Modernization Act of 2010 (FSMA) was signed into law by President Obama on January 4, 2011. The law grants FDA a number of new powers, like mandatory recall authority, which the agency has sought for many years. Notably, federal law still does not prohibit the sale of animal-based products that are infected with pathogens. In particular, it is not illegal for TFCs (transnational food corporations) to sell chicken products polluted with salmonella. Oddly, the USDA does not have the authority to shut down an animal-based agribusiness that fails too many tests. It can only step up inspections.

The USDA has pledged repeatedly to set limits for the most dangerous pathogens, salmonella and campylobacter, in animal-based products. Salmonella and campylobacter live in the guts of animals and can contaminate raw flesh when animals are slaughtered. The USDA's current expectation is that less than 44.6% of a plant’s ground chicken and 49.9% of a plant’s ground turkey should be infected with Salmonella.(989) This means around half of the total animal carcass production can be dangerously toxic and still be approved for consumption.

On January 21, 2015, the USDA finally proposed new testing standards for chicken and turkey aimed at reducing rates of salmonella and other bacteria. The proposed rules aim to reduce contaminant levels by about half, to 25% of tested samples.(990) This is still a dangerous amount of bacteria.

The USDA is not requiring chicken processors to take specific steps to reduce dangerous pathogens in their products. Instead, it is proposing limits on the number of chicken samples that can test positive for salmonella and campylobacter before a facility is deemed to have failed the standards. One of the agency's pilot program allows pig carcass producers to ramp up the speed of processing lines by 20% and cut the number of USDA safety inspectors at each plant in half, replacing them with private inspectors. This program fails to stop contamination, and USDA has allowed other countries to use equivalent methods in plants producing red meat for export to the US.(991)

The USDA's own report determined that livestock “plants have repeatedly violated the same regulations with little or no consequence.” And that inspectors did not “take enforcement actions against plants that violated food safety regulations.”(992)

Meat recalls due to contamination have become so commonplace that when the USDA announced in 2008 the recall of 143 million pounds (65m kg) of ground cow carcass, the largest recall in history, it hardly sparked much interest. Around 50 million pounds (22m kg) of that cow flesh went into school lunches and federal food programs for the poor and elderly.(993)

Livestock production creates a multitude of health issues for people and animals. In the US, chicken products contaminated with pathogens such as Salmonella, cause a larger number of deaths than any other food product.(994) Numerous illnesses can quickly become life-threatening for food animals trapped in CAFOs (concentrated animal feed operation), and can spread rapidly under massed confinement.(995)

Chapter 27: PANZOOTIC, page 256.     Previous  |  Home  |  Next

For more information, see MeatClimateChange.org

Panzootic

Pandemics Ahead: Number 4 in a series looking at the link between animal protein and global health disasters.

Excerpt from Meat Climate Change: The 2nd Leading Cause of Global Warming by Moses Seenarine, (2016). Xpyr Press, 348 pages ISBN: 0692641157) http://amzn.to/2yn7XrC

A panzootic is an epizootic or an outbreak of an infectious disease of animals, that spreads across a large region, like a continent, or even worldwide. The equivalent in human populations is called a pandemic. A panzootic can start when three conditions have been met: (a) the emergence of a disease new to the population; (b) the agent infects a species and causes serious illness; and (c) the agent spreads easily and sustainably among animals. 

A disease or condition is not a panzootic merely because it is widespread or kills a large number of animals; it must be infectious as well. Cancer is responsible for a large number of deaths but is not considered a panzootic because the disease is, generally speaking, not infectious.

Cattle plague is a panzootic that recurred throughout history, often accompanying wars and military campaigns. Cattle plague affected Europe especially in the 18th century with three long panzootic from 1709–1720, 1742–1760, and 1768–1786 that devastated thousands of herds. There was a major outbreak covering the whole of Britain in 1865/66. Later in history, an outbreak in the 1890s killed 80 to 90% of all cattle in southern Africa, as well as in the Horn of Africa. A hundred years later, rinderpest outbreak raged across much of Africa in 1982–1984, costing US$500 million in losses.

Avian flu is another zoonotic than can become panzootic. It is feared that if the avian influenza virus combines with a human influenza virus in a bird or a human, the new subtype created could be both highly contagious and highly lethal. 

In 1996, the UK slaughtered 4.4 million cattle to eradicate mad cow disease, while 400,000 were killed in 2001 in Germany. In 2009, Egypt ordered the cull of all pig herds, over 400,000 pigs, to avoid swine flu. In 2014 in the US, seven million piglets, or 10% of piglets born, died due to Porcine diarrhea virus.

In 2014 alone, a list of mass animal deaths contains dozens of incidents across the world. Concerns over avian influenza in South Korea led to 14 million birds being slaughtered in 2014, and 324,000 in China, another 46,000 in North Korea, 112,000 in Japan, 64,000 in Vietnam, 40,000 in Holland, 38,000 in Germany, 20,000 in Hong Kong, and thousands further in Nepal. In northeast China, after 18,000 geese died from H5N6 bird flu, and 69,000 were culled.(1003) 

In Beijing in 2014, 20,000 ducks died suddenly due to avian influenza, while 10,000 chickens died in Malaysia. And in Sweden, 24,000 chickens were slaughtered due to an outbreak of Paramyxovirus type 1 disease. On top of that, in 2014, thousands of chickens died in Indonesia from Boyolali coli disease. Farmers suspect that weather anomalies make their chickens susceptible to the disease.

In June 9, 2015, in excess of 10% of US chickens raised to produce eggs were killed by or because of a highly pathogenic avian influenza virus. The H5N2 virus affected 39 million chickens—at least 33 million of which were laying hens—and 7 million turkeys.(1004)

After the outbreak of BSE in Europe, sanitary regulation required livestock carcasses to be collected from farms, and transformed or destroyed in authorized plants. This generated an unprecedented volume of GHG pollution. In Spain, carcass collection and transport to intermediate and processing plants meant the emission of 77,344 metric tons of CO2 eq. to the atmosphere per year, in addition to annual payments of $50 million to insurance companies. So replacing the ecosystem services provided by scavengers has conservation costs, and unnecessary environmental and economic costs as well.(1005)

Accretionary animal die-offs due to climate change and zoonetic illness in CAFOs will lead to higher CO2 discharges and a larger energy footprint for the industry, making it inefficient and unsustainable to a larger extent. The industry has failed to come to grips with the hazards of extreme weather and climate warming, and is over-using antibiotics on factory farms in a desperate attempt to control disease. Veterinary medicine use is predicted to intensify as disease burdens swell due to varied climate effects.(1006)

Factory farming poses considerable challenges for global warming, environmental and public health, farmers’ livelihoods, and animal welfare. Even as factory farming bears significant responsibility for planetary warming, it also numbers among the industries that will feel the impact of climate change most keenly. Millions of animals die or are culled by animal agribusinesses, and better management can improve livestock survival under climate and disease stress.

A virtues-based approach could improve our thinking and practice regarding animal agriculture, and facilitate a move from livestock production back to animal husbandry. Although of limited value, this approach centers on attentiveness, responsibility, competence, and responsiveness as part of mitigation.(1007)

Chapter 27: PANZOOTIC, page 260.     Previous  |  Home  |  Next

For more information, see MeatClimateChange.org

Avian Flu

Pandemics Ahead: Number 3 in a series looking at the link between animal protein and global health disasters.

Excerpt from Meat Climate Change: The 2nd Leading Cause of Global Warming by Moses Seenarine, (2016). Xpyr Press, 348 pages ISBN: 0692641157) http://amzn.to/2yn7XrC

The deadly H5N1 strain of bird flu is essentially a problem of industrial chicken practices. Intensified stocking rates enhance the danger that crowded conditions in chicken farms will allow avian influenza to spread quickly. Waterfowl such as wild ducks are thought to be primary hosts for all bird flu subtypes. Though normally resistant to the viruses, the birds carry them in their intestines and distribute them through feces into the environment, where they infect susceptible domestic birds.(1001)

Sick birds pass the viruses to healthy birds through saliva, nasal secretions, and feces. Within a single region, bird flu is transmitted readily from farm to farm via (a) airborne feces-contaminated dust and soil; (b) by contaminated clothing, feed, and equipment; or (c) by wild animals carrying the virus on their bodies. The disease is spread from region to region by migratory birds and through international trade in live birds. Humans who are in close contact with sick birds, like chicken farmers and slaughterhouse workers, are at the greatest danger of becoming infected. Besides chicken, virus-contaminated surfaces and intermediate hosts such as pigs can be sources of infection for humans. 

According to the WHO, 622 people were infected with H5N1 between 2003 and 2013, and about 60% of those individuals died. The majority of human H5N1 infections and deaths occurred in Egypt, Indonesia, and Vietnam.(1002) Small outbreaks of bird flu caused by other subtypes of the virus have occurred in the past. A less severe form of disease associated with H7N7 was reported in the Netherlands in 2003, where it caused one human death but led to the culling of thousands of chickens. Since then the virus has been detected in the country on several occasions.

A Chinese vaccine was made with H5N1 antigens, but chickens still get infected. And there is drift when the virus mutates in response to the antibodies. Now there are five or six versions of H5N1. Keeping wild birds away from domestic birds help to lessen the spread of H5N1. In 2013, a strain of H7N9 capable of causing severe pneumonia and death emerged in China, with the first confirmed cases detected in February that year and dozens of others reported in the following months. It was the first H7N9 outbreak reported in humans.

The medical industry and scientific community recognize the danger. A UN press release states, "Governments, local authorities and international agencies need to take a greatly increased role in combating the role of factory-farming, commerce in live, and wildlife markets which provide ideal conditions for the virus to spread and mutate into a more dangerous form..." Still, doctors and bureaucrats may be powerless against the livestock industry.

Chapter 27: PANZOOTIC, page 259.      Previous  |  Home   |  Next

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