Connecting moms in Polk County, Fla.
.
Dangerous Malaria Gives Researchers Concern
http://www.redorbit.com/news/health/1112667342/dangerous-malaria-gi...
(Ivanhoe Newswire) – According to research from Penn State University, malaria parasites evolving in vaccinated laboratory mice become more lethal. The mice were injected with a critical component of several candidate human malaria vaccines that are currently being evaluated in clinical trials.
“Our research shows immunization with this particular type of malaria vaccine can create ecological conditions that favor the evolution of parasites that cause more severe disease in unvaccinated mice,” Andrew Read, Alumni Professor of Biological Sciences at Penn State, was quoted as saying. “We are a long way from being able to assess the likelihood of this process occurring in humans, but our research suggests the need for vigilance. It is possible that more-virulent strains of malaria might evolve if a malaria vaccine goes into widespread use.”
The research showed that more-virulent malaria parasites evolved in response to vaccination...
“Our laboratory experiments followed clues from theoretical studies and earlier experiments that suggested that some malaria vaccines could favor the evolution of more-virulent malaria parasites,” Read was quoted as saying. If candidate vaccines do not completely destroy all of the malaria parasites, the parasites that remain have opportunities to evolve. A mosquito could potentially transfer the evolved parasite from the vaccinated person into a new host in a process called “leaking.”
“Leaky vaccines create a situation that further fosters parasite evolution,” Read was quoted as saying.
The study found that the parasites that were causing worse malaria symptoms in unvaccinated mice evolved after consecutively “leaking” through as few as 10 vaccinated mice.
“The parasites that are able to survive in the immunized hosts must be stronger after having survived exposure to the vaccine,” Read was quoted as saying. “The vaccine-induced immunity apparently removed the less virulent malaria parasites, but left the more virulent ones.”
Read believes that vaccine researchers leading clinical trials should carefully monitor for parasite evolution at the vaccine target, as well as watch for mutations throughout the parasite’s entire genome.
“This sort of monitoring also should go on once a new vaccine goes into widespread use,” he was quoted as saying. “It appears that in a world with leaky vaccines, virulent pathogen strains can evolve. Different vaccines or other transmission-blocking measures might be needed to stop the spread of any evolved parasites.”
Tags: Leaky, causing, lethal, mutation, vaccination, vaccines, virulent
Permalink Reply by 18watt_fan on August 1, 2012 at 12:03pm .
And lest some of you think this is an isolated problem - - THINK AGAIN !!!
I've been collecting mainstream news articles and mainstream scientific studies which prove that various vaccines are causing dangerous mutations and making matters worse:
Vaccines are causing mutations, creating a similar problem as antibiotics
http://www.polkmoms.com/forum/topics/are-vaccines-causing-mutations...
.
© 2013 Created by Ledger Media.
Powered by