FDA approves first GMO flu Vaccine containing Reprogrammed insect Virus
by: Jonathan Benson
A new vaccine for influenza has hit the
market, and it is the first ever to contain genetically-modified (GM)
proteins derived from insect cells. According to reports, the U.S. Food and Drug Administration (FDA)
recently approved the vaccine, known as Flublok, which contains
recombinant DNA technology and an insect virus known as baculovirus that
is purported to help facilitate the more rapid production of vaccines.
According to Flublok's package insert, the vaccine is trivalent, which
means it contains GM proteins from three different flu strains. The
vaccine's manufacturer, Protein Sciences Corporation (PSC), explains
that Flublok is produced by extracting cells from the fall armyworm, a
type of caterpillar, and genetically altering them to produce large
amounts of hemagglutinin, a flu virus protein that enables the flu virus
itself to enter the body quickly.
So rather than have to produce vaccines
the "traditional" way using egg cultures, vaccine manufacturers will now
have the ability to rapidly produce large batches of flu virus protein
using GMOs, which is sure to increase profits for the vaccine industry.
But it is also sure to lead to all sorts of serious side effects,
including the deadly nerve disease Guillain-Barre Syndrome (GSB), which
is listed on the shot as a potential side effect.
"If Guillain-Barre Syndrome (GBS) has
occurred within six weeks of receipt of a prior influenza vaccine, the
decision to give Flublock should be based on careful consideration of
the potential benefits and risks," explains a section of the vaccine's
literature entitled "Warnings and Precautions." Other potential side
effects include allergic reactions, respiratory infections, headaches,
fatigue, altered immunocompetence, rhinorrhea, and myalgia.
According to clinical data provided by
PSC in Flublok's package insert, two study participants actually died
during trials of the vaccine. But the company still insists Flublok is
safe and effective, and that it is about 45 percent effective against
all strains of influenza in circulation, rather than just one or two
strains.
FDA also approves flu vaccine containing dog kidney cells
Back in November, the FDA also approved a
new flu vaccine known as Flucelvax that is actually made using dog
kidney cells. A product of pharmaceutical giant Novartis, Flucelvax also
does away with the egg cultures, and can similarly be produced much
more rapidly than traditional flu vaccines, which means vaccine
companies can have it ready and waiting should the federal government
declare a pandemic.
Like Flublok, Flucelvax was made possible because of a $1 billion, taxpayer-funded grant given by the U.S. Department of Health and Human Services (HHS)
to the vaccine industry back in 2006 to develop new manufacturing
methods for vaccines. The ultimate goal is to be able to quickly
manufacture hundreds of millions of vaccines for rapid distribution.
Meanwhile, there are reportedly two other
GMO flu vaccines currently under development. One of them, which is
being produced by Novavax, will utilize "bits of genetic material grown
in caterpillar cells called 'virus-like particles' that mimic a flu
virus," according to Reuters.
Sources for this article include:
www.reuters.com
No comments:
Post a Comment