As reported in later editions of yesterday's Yorkshire Evening Post, Dr David Pugh, 55, was jailed by a judge at Cambridge Crown Court after admitting forging four results at the clinic he ran near Borehamwood, Herts, in February 2003.
Pugh also ran a private clinic in Sheffield which attracted parents from West Yorkshire worried about a possible link between autism and the controversial combined MMR jab.
The court heard thousands of families paid £70 for separate innoculations at his Elstree Aerodrome clinic.
Pugh, from Hoddesdon, Herts, was very successful but after a newspaper report that the innoculations might not be effective, parents flooded the clinic with calls.
Business
The GP offered free blood tests to prove whether children were innoculated but, the court heard, changed results which showed they had not been properly vaccinated to deceive parents and protect his business.
Twice Pugh inserted the results of a blood test on his 26-year-old daughter Josephine, who was innoculated against the three diseases, into negative blood tests.
Judge John Sennitt said it was a "very significant breach of trust".
Anthony Abell, for Pugh who has been living in Runaway Bay, Queensland, Australia, said his client was now "ruined". Mr Abell said it was "inevitable" that Pugh would be struck off my the General Medical Council and Pugh was bankrupt.
• Josephine Pugh, of Finchley, north London, was found not guilty of forgery after prosecutors offered no evidence.