The issue with vaccines is that not every batch will be contaminated, in all probability. This intermittent contamination hypothesis actually matches ME/CFS outbreaks. Who get vaccinated the most? Children and medical workers. Where have we had a lot of epidemics? Children and medical workers. There is an historical mystery here that those of use who are talented with digging up history might like to pursue. Do many epidemics of ME/CFS follow very specific vaccination batches?
Well, that made me do some thinking...
The 1955 outbreak of ME in the Royal Free hospital that they labelled 'mass hysteria' was supposed to be a polio-like illness (or an atypical-polio-like illnes?), if my memory serves me correctly.
So I just looked up some details... The Royal Free outbreak was in 1955...
And then this is what Wikipedia says about the Polio vaccine...
Polish-born virologist and immunologist Hilary Koprowski, who claims to have created the first successful polio vaccine, in 1950. His vaccine, however, being a live attenuated virus taken orally, was still in the research stage and would not be ready for use until five years after Jonas Salk's polio vaccine (a dead injectable vaccine) had reached the market.
http://en.wikipedia.org/wiki/Polio_vaccine
So the Polio vaccine was on the mass market at around 1955. I wonder if the staff at the Royal Free were immunised at this time? All medical staff would probably be the first to receive the vaccine, probably all at the same time, in a mass immunisation drive.
And then, if you read on in the Wiki article:
Koprowski's attenuated vaccine was prepared by successive passages through the brains of Swiss albino mice.
What?!?!?!?!
Swiss albino mice! Mice!
Alarm bells!!!
This all sounds rather close to what Deckoff-Jones has said in her blog, about the successive passage of vaccines through tissues.
It goes on to say:
By the seventh passage, the vaccine strains could no longer infect nervous tissue or cause paralysis. After one to three further passages on rats, the vaccine was deemed safe for human use.[13][14] On February 27, 1950, Koprowski's live, attenuated vaccine was tested for the first time on an eight year old boy from Letchworth Village, New York. The boy suffered no side effects and Koprowski enlarged his experiment to include 19 other children
http://en.wikipedia.org/wiki/Polio_vaccine
And then there's a bit about contamination with Simian-Virus-40:
Contamination concerns
In 1960, it was determined that the rhesus monkey kidney cells used to prepare the poliovirus vaccines were infected with the SV40 virus (Simian Virus-40).[48] SV40 was also discovered in 1960 and is a naturally occurring virus that infects monkeys. In 1961, SV40 was found to cause tumors in rodents.[49] More recently, the virus was found in certain forms of cancer in humans, for instance brain and bone tumors, mesotheliomas, and some types of non-Hodgkin's lymphoma.[50][51] However, it has not been determined that SV40 causes these cancers.[52]
SV40 was found to be present in stocks of the injected form of the polio vaccine (IPV) in use between 1955 to 1963.[48] It is not found in the OPV form.[48] Over 98 million Americans received one or more doses of polio vaccine between 1955 to 1963 when a proportion of vaccine was contaminated with SV40; it has been estimated that 10–30 million Americans may have received a dose of vaccine contaminated with SV40
http://en.wikipedia.org/wiki/Polio_vaccine
I've just done a bit more research, and mass inoculations were not quite ready by 1955. So unless the Royal Free was involved in a trial study, then they were unlikely to have received the polio vaccination.
Two vaccines are used throughout the world to combat polio. The first was developed by Jonas Salk, first tested in 1952, and announced to the world by Salk on April 12, 1955.[43] The Salk vaccine, or inactivated poliovirus vaccine (IPV), consists of an injected dose of killed poliovirus. In 1954, the vaccine was tested for its ability to prevent polio; the field trials involving the Salk vaccine would grow to be the largest medical experiment in history.
http://en.wikipedia.org/wiki/History_of_poliomyelitis
hmm... I can't quite work out the dates when polio vaccines became widespread... it looks like it was in the mid-1950's:
Following the widespread use of poliovirus vaccine in the mid-1950s, the incidence of poliomyelitis declined dramatically in many industrialized countries
http://en.wikipedia.org/wiki/Poliomyelitis#Vaccine
This is from an NHS website:
Due to the introduction of a polio vaccine in 1955, the number of polio cases has been dramatically reduced.
http://www.nhs.uk/conditions/Polio-and-post-polio-syndrome-/Pages/Introduction.aspx
I can't find any more info on when the UK rolled out it's polio vaccination program, and I don't know when the Royal Free may have been trialing vaccinations.
There is some interesting information on the Hummingbird website that links ME to polio viruses (which are enteroviruses), and a suggestion that an 'infection' with ME protected people from the Polio outbreak in Iceland in the 1950's...
http://www.hfme.org/topicoutbreaks.htm
Note: I know that I've just done a lot of speculation, but it's a very interesting area of discussion.