Imperfect Vaccination Can Enhance the Transmission of Highly Virulent Pathogens

  • Andrew F. Read ,
  • Susan J. Baigent,
  • Claire Powers,
  • Lydia B. Kgosana,
  • Luke Blackwell,
  • Lorraine P. Smith,
  • David A. Kennedy,
  • Stephen W. Walkden-Brown,
  • Venugopal K. Nair
  • Published: July 27, 2015
  • DOI: 10.1371/journal.pbio.1002198

Abstract

Could some vaccines drive the evolution of more virulent pathogens? Conventional wisdom is that natural selection will remove highly lethal pathogens if host death greatly reduces transmission. Vaccines that keep hosts alive but still allow transmission could thus allow very virulent strains to circulate in a population. Here we show experimentally that immunization of chickens against Marek's disease virus enhances the fitness of more virulent strains, making it possible for hyperpathogenic strains to transmit. Immunity elicited by direct vaccination or by maternal vaccination prolongs host survival but does not prevent infection, viral replication or transmission, thus extending the infectious periods of strains otherwise too lethal to persist. Our data show that anti-disease vaccines that do not prevent transmission can create conditions that promote the emergence of pathogen strains that cause more severe disease in unvaccinated hosts.

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Recently headlines were made as 118 oncologist, of the 22,125 currently active in the United States, sounded the alarm publicly about the rising price of cancer drugs calling them “unsustainable.” This rebellious 118, or half of one percent, appear to be making a valid argument from within a tightly controlled and highly profitable cancer industry. Perhaps unaware to most oncologist and others within the mainstream medical system is that drug companies rely on fraud and half truths to circulate their products. In fact, most major drug companies have repeatedly shown that profit margins trump empathy, true healing and human life 8 days a week.

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While vaccines for mumps, rubella and measles protect those who are vaccinated and prevent them infecting others, new jabs leave a risk of infecting others

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The following open letter by a PhD Immunologist completely demolishes the current California legislative initiative to remove all vaccine exemptions. That such a draconian and cynical state statute is under consideration in the ‘Golden State’ is as shocking as it is predictable. After all, it was mysteriously written and submitted shortly after the manufactured-in-Disneyland measles ‘outbreak’.


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New Study: GMO Soy Accumulates Cancerous Formaldehyde

As if there weren’t plenty of reasons already to avoid genetically modified soy and other soy products – now a new study has made eating this GM crop even less appetizing.

As I previously reported for Natural Society, GM soy is toxic to the kidneys, liver, and reproductive system – and that’s not good considering that almost 90 percent of the soy grown in the US is genetically modified.

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Health Impact News Editor Comments

Dr. MaryAnne Demasi’s documentary on the criminal activity of the pharmaceutical industry regarding cholesterol-lowering statin drugs sent shock waves through the mainstream media in Australia last year. Published in two parts on the popular news show The Catalyst, the pharmaceutical industry complained loudly after the first show, and requested the network not air the second episode, “Heart of the Matter Part 2 – Cholesterol Drug War.”

ABC Australia aired it anyway, but the pharmaceutical influence is apparently too strong, as it was announced that the network would remove the videos from their website because “they breached its impartiality standards.” They also removed them from YouTube.


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Waning of Maternal Antibodies Against Measles, Mumps, Rubella, and Varicella in Communities With Contrasting Vaccination Coverage

Sandra Waaijenborg1,3, Susan J. M. Hahné1, Liesbeth Mollema1, Gaby P. Smits2, Guy A. M. Berbers2, Fiona R. M. van der Klis2, Hester E. de Melker1, Jacco Wallinga1


Correspondence: Sandra Waaijenborg, PhD, National Institute of Public Health and the Environment, Centre for Infectious Disease Control, Epidemiology and Surveillance Unit, PO Box 1, 3720 BA Bilthoven, the Netherlands (sandra.waaijenborg@rivm.nl).
Presented in part: European Society for Pediatric Infectious Diseases, The Hague, the Netherlands (poster) June 2011. Partly presented as a poster at the Nordic Vaccine meeting, Copenhagen, 5–7 September 2012.
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The global market for cancer drugs has hit $100 billion in annual sales, and could reach $147 billion by 2018, according to a new report by the IMS Institute for Healthcare Informatics, a unit of drug data provider IMS Health.

This figure does not include discounts or rebates paid to insurers and government programs; IMS says that in the case of cancer drugs, this should not make a big difference the overall figure.

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Why do cancer drugs get such an easy ride?

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Rushed approvals result in a poor deal for both patients and cancer research

Unlike most other diseases, cancer instils a special fear and “is treated as an evil, invincible predator, not just a disease.”1 The ability of drug companies to charge very high prices, even when most approved cancer drugs provide little gain for patients, drives much of the research, as desperate patients lead some governments and private insurers to pay whatever companies charge. Officials within the US Food and Drug Administration are enthusiastic about new cancer drugs.

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Stevia has the added benefits of being pH-stable, heat-stable, and non-fermentable. The two primary active compounds — stevioside and rebaudioside — are known as steviol glycosides.

Originally used by South American tribes for hundreds of years, it has been used to sweeten teas and medicines alike. Because of its extraordinary sweetness, it is also used in a variety of other prepared foods especially baked goods. The leaves of the Stevia rebaudiana plant have been recognized as a multi-purposeful herb in both Brazil and Paraguay where it is used as a “sweet treat.”

Industrial Extracts and Derivatives are NOT the same as Natural Herbal Stevia

This is where the story of highly processed and unnatural stevia begins. The beverage companies created a huge public relations nightmare for themselves with the introduction of artificial sweeteners back in the 1960s and ’70s. Sugar substitutes like cyclamate and aspartame were added to some of the beverage recipes just at the same time that Saccharin was becoming popular.

Later on, sucralose (also known as Splenda), a non-nutritive and non-caloric sweetener, was added to the list because of the problems with those earlier products. All of these artificial sweeteners have now been proven to have their downside health risks, in addition to not tasting good.

In their eagerness to jump on the stevia bandwagon, the big beverage companies like Coca Cola and Pepsi have done what they usually do. They have formulated processes for extracting the sweetest ingredients from the stevia plant leaf. This process of chemical extraction renders the original form of the stevia herb virtually unrecognizable.

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