Four out of seven flu vaccine brands approved for NHS use contain thiomersal, a mercury-containing agent at the centre of safety concerns over its effect on brain function, particularly in children.

An electronic search was conducted by consulting the following databases: PubMed (1966–2010), CINAHL (1982–2010), International Pharmaceutical Abstracts (IPA) database (1970–2010), and the ...

The aforementioned animal and human experiments along with epidemiological observations seem to follow the scheme 'first tolerance induction, then attempts at sensitizing on the skin', which ...