Red Door Communications has been hired by Aventis Pasteur MSD to restore confidence in the controversial MMR vaccine among health workers.
Aventis has appointed Red Door to handle its travel and child vaccine portfolios, which includes the under-fire vaccine, used to counter mumps, measles and rubella.
MMR vaccine has been linked with bowel disorders and autism by experts at London's Royal Free Hospital.
Red Door replaces incumbent of two years, Grayling Group, following a two-way pitch. Grayling, which did not re-pitch, will continue to handle Aventis's corporate account and Hepatitis B portfolio.
A six-strong team, headed by Red Door MD Catherine Warne, will handle the account, reporting to the vaccine's project managers and Aventis marketing director Jane Alexander.
Warne said: 'There's a big job to do with the healthcare professionals regarding MMR.'
In January the Department of Health announced it would co-ordinate a pounds 3m campaign aimed at restoring confidence in the vaccine among parents.
Aventis communications manager Amanda Bryett said: 'The Department of Health is directing the campaign from the consumer side. Red Door will target practice nurses and GPs - those who are in contact with the parents.'
Aventis's child vaccine portfolio also includes the DTP/Hib vaccine for diphtheria, tetanus, polio and haemophilus.
Work to be carried out for the travel vaccine portfolio is aimed at healthcare workers, but also includes a consumer educational programme to promote the importance of getting vaccinated before travelling to certain destinations.
The agency will also work on the company's pneumovax II vaccine for pneumococcal pneumonia.