A MUM is calling for new re-search after claiming her daughter's autism could have been caused by mercury in a vaccine. Louisa Diamond of Acton said she first suspected the link between mercury, which is used to preserve some vaccines, and seven-year-old Liesel's autism in 2001. 'I became very ill in May that year,' she said. 'I seemed to be showing similar symptoms to Liesel. I was having tantrums and would pass out after eating which baffled doctors at the Maelor. 'I almost died and lost six stone. No-one could figure out what was wrong until a hair analysis showed I had dangerous levels of mercury. 'It was traced to amalgam fillings which were removed. After that, scans showed the mercury in my system decreased. But similarities between my symptoms and Liesel's condition worried me.' Louisa, and husband Colin, did some research and found some childhood vaccines contained a mercury-based substance called Thiomersal. A vaccine, which all UK children received until 2004 and which contains Thiomersal is DTwP, which protects against whole-cell diphtheria, tetanus and whooping cough. | 
