|
Some concerns about the use of vaccines
Many media articles and reports have been written by individuals
opposed to vaccination. Their concerns must be taken into
consideration and work needs to be done to restore public
confidence in the principle of vaccination.
Among the typical comments are:
Vaccines cause long-term side effects
There is no scientific evidence to prove that vaccination
results in side effects which only develop many years later.
There is much stronger evidence that allowing children to
develop infections which were once considered as a normal
part of growing up is potentially much more dangerous.
Vaccines can cause disease
Reports in the media have claimed that vaccination causes
autism, bowel disease, brain damage, diabetes, multiple sclerosis,
rheumatoid arthritis and many other conditions. This is understandable,
since many people in the 21st century want to believe that
every occurrence must have a cause. In a society where vaccination
coverage is high – more than 90 per cent – it is an inevitable
coincidence that some diseases may be first diagnosed within
weeks or months of vaccination. This chance association does
not prove that vaccination was the cause.
Vaccines are ineffective
Evidence for the effectiveness of vaccines and vaccination
policies can be seen in the dramatic drop in measles, mumps
and rubella notifications following the introduction of MMR
vaccine, the almost complete elimination of Hib meningitis
in the UK and the recent dramatic drop in the incidence of
Group C meningitis. The eradication of smallpox and the possible
eradication of polio and measles should be added to these
successes. The UK experiences in the 1970s, when whooping
cough vaccine uptake dropped dramatically and the disease
returned with a vengeance, prove that vaccines work.
Clean water, diet and exercise are more beneficial than
vaccines
There is no doubt that improved living standards have helped
to reduce the incidence of disease, but these alone would
not have been able to eradicate diseases such as smallpox
and polio. Living standards in the UK in the 1970s were high,
but whooping cough returned when vaccination coverage dropped.
Living standards in the 1990s were high, but children were
still dying from Hib meningitis and Group C meningococcal
meningitis – vaccination changed this picture. Living standards
in the Netherlands and in Ireland are high, but that did not
prevent recent epidemics of measles in unvaccinated children,
with subsequent deaths.
Multiple vaccines ‘overload’ the immune system
There is no evidence to support the overload theory. From
birth, the human immune system is designed to cope with many
challenges each day. A fall in the playground will introduce
far more germs into the body than the controlled introduction
into the muscle tissue (not the bloodstream, as so many media
reports state) of a highly purified vaccine. Introduction
into the muscle tissue actually causes a completely natural
immune response involving the white blood cells
|